@kalgert PVE dedicated games that retain players over the years are either mmorpg's or games that offer tons of variety, recurrent updates, tons of mechanics and different levels of challenge for each type of player. (see elden ring, monster hunter, genshin impact for example)
You have to admit it even if you hate the fact, pve in this game is an afterburner, a means to an end, it was not deeply developed, it was meant for people to have something to do between pvp encounters, later I believe they realized pvp scared off most of the pve oriented folks which where probably the ones putting money on skins (happens in every single mmorpg out there) so they decided to switch direction and give a bit more focus on the pve aspect of the game, but with this old engine, they can't develop more interesting enemies/zones so they are kind of stuck with what they got. And thats why they present cosmetics or track lists as "content"
Think about it, you have:
skeletons, ghosts (same as skellys with a weapon swap)
sea monsters (reskined ghosts with no guns)
bulky sea monsters (damage sponges)
then you have bosses with way too big health pools but no mechanics at all except maybe that guy that toss fire balls, they even repeat bosses across different content (ashen winds guy as last boss of FOF)
None of this enemies can kill you unless you afk for a whole minute right on their faces so all you need to master to be a pve lord is to walk and shoot at the same time (basic mechanics across every single game that involves any kind of projectile based weapon)
And now on the pve content overall:
Green skulls/mermaid dungeons: ignored and neglected
fotd: rarely you can see a crew summoning one since it's way easier to just portal hop looking for a FOF
FOF: replaced by veils so few crews look in for this (btw mechanic wise it's the same as running any other fort with the addition of colored lamps, 1 new mechanic)
skelly fleets: ignored and replaced by veils
veils: naval battle against stationary structures...
forts: half a fortress with 5 ghosts waves (ghosts die on one sniper bullet...)
If you don't get eventually bored of this sort of content of course I'd call you a bot, specially since most players that engage only in this side of the game are the same that complain PVP is too stressful and difficult, they need a safe chill environment to vent off after a long day of work and admit they go through this repetitive content just to reach a personal goal (achievement, title, etc.) and once they finish are the same players who leave the game until the next big update is announced.