Erm so CCP say they're capital ships, the market category says they're capital ships, you need Capital Ship Construction to build them, yet you still insist they're not capital ships?

maybe the problem is you not the rest of the world

They are capital ships, just a different capital ship than carriers, dreads, supercaps & titans.

As for the main subject, Combat Capital Ships (carriers, dreads etc) in high would be a bad idea since they would be vastly overpowered against anything other than similar class ships, there would have to be so many caveats to allowing them in such as.
The inability to target anything
Tank severely reduced to maybe double a battleship tank
Any extra boosting bonuses (the rorqual) disabled.

Basically the ability to buy/sell them in high sec, but since Combat Capitals & Rorquals can't use stargates that would also have to be addressed, or the allowing of cyno's in highsec.
So maybe allow them through as passing only, so you didn't have to park cyno chars all over the place, but even then it's not something I would like to see. Can you imagine the traffic jam outside Jita 4-4 Cnap as dozens of carriers / dreads start undocking, it's bad enough with freighters

Capitals are not banned in highsec.... cynos are

You mad, bro?

I cant think of a reason for it. Concord Melts them just as fast as any other ship and theyre not really useful for ganking due to damage application vs non capitals. Ship restrictions seem against the spirit of the game.

Is CCP afraid of Jita 4-4 exploding in a glorious rain of doomsday weapons? (Note I am unaware if NPC stations can even take damage)

I cant think of a reason for it. Concord Melts them just as fast as any other ship and theyre not really useful for ganking due to damage application vs non capitals. Ship restrictions seem against the spirit of the game.

Is CCP afraid of Jita 4-4 exploding in a glorious rain of doomsday weapons? (Note I am unaware if NPC stations can even take damage)

Freighters, orcas, and jump freighters are not capital ships.
I don't care what the market category says.

Capitol ships themselves are not banned in hi-sec. The cynosural field (an artificial gravity well) that a Capitol Ship's jump drive needs to lock on to in order to make a jump is banned in Hi-sec.

If that would be so then low sec would be completely useless and the only reason to have those systems is the few systems with FW in them.
Also high sec is the starting area for players, its where you learn the first basics of pvp in this game.

Null sec however is the end game pvp experience where everything is allowed.

I feel the same, but more out of habit and desire for an ease of categorisation to other people than any real-world distinction. Being able to categorise Capitals as a class of ships that can only move systems 'via a jump drive to a cyno because they are too big for system gates' feels a lot cleaner than telling them that a Capital ship is one that 'requires Capital Ship Construction to build'. That just feels artificial to me somehow, and forces people unfamiliar with the ships to look up the blueprint information.

To me Freighters and Orcas will always be just 'super Industrials', but I suppose I'll grudgingly recognise them as being a form of capital ship on a good day and to avoid arguments...

Actually, in order to say a ship is a "true" capital...

- it requires capital rigs
- it requires capital skills
- it can use capital mods

The Orca is not a true capital ship in that it fulfills none of the above conditions. It uses large rigs, doesn't require any real capital skills, and it has less PG and CPU than a battleship.

With regards to Freighters and Jump Freighters... they are "special snowflakes" in more than one way. While they are considered capitals they can somehow fit through stargates. They also posses no ability to fit anything... though that is probably for the best as opening up both ships to fittings would create a host of issues (both immediate and long term).

Try putting a large rail on a dread and see what happens.

I bet it's very similar as to when you put small lasers on a cruiser. (ie- it fits).

GǪand?

Why are capitals banned in high sec?

And that does not make a cruiser a frigate, as was suggested by the poster I quoted.

tl;dr Capital ships do not require capital fittings.

(stuff)

That's not the point. It's a matter of what is more feasible for inexperienced, poor, and/or already stomped players to deal with.

Why?

Same reason I can't have a coastal artillery gun in my front yard; Hilariously over-powered for any rational purpose, ludicrously impractical for any irrational purpose, worries the government, scares the neighbors and wakes their dogs, and is an eyesore besides.

If I had my own island empire, OTOH, I might have some use for it...

Since when has that ever been the point of anything?

Actually, in order to say a ship is a "true" capital...

- it requires capital rigs
- it requires capital skills
- it can use capital mods

Roughly since capships were thrown out of highsec.

They have no role to fill in that part of space and their presence would offer far too much safety, security, and firepower for the owners compared to what others can throw at them at a whim.

So basically, no real reason whatsoever.

Really? So if I had a capship in high sec, you're saying with certainty that no one else would ever have a 'whim' to send their capitals after mine?