Thanks for your answer. I still have my doubts as for the building limit - my point (hope) is, that when you know, that you have a limit, maybe you won’t build so large base (in the matter of area coverage), because you will have to keep in mind, that either you build wide or either you build tall. For example popular
“pyramid” design - either won’t be high (which I think will force it’s creator to make it smaller) or either won’t be enormous like the one I saw few days back (about 100x100 base level foundations). Yeah, it’s not the perfect solution and can still be “dodged” by building wider but lower bases, but it is at least some solution. It will for sure need a lot of work and tweaking all those servers, but every major update do that, so it’s not impossible (for example removing purge meter or adjusting map by repositioning legendary chests in current one).

I also want to thank you for mentioning placeables limit, indeed it is a problem - this time I think it is more about server performance (or overall game performance), while excessive bases affects more my immersion and “fun” of the game (allowing others to build and play is a key in such games) rather than computer performance. Although game is behaving noticeably worse (performance wise) around those huge constructions, even without much placeables.

Anyway, if you or anyone else could bring any idea (apart from sending tickets or changing server) how to deal with those enormous bases , with endless pathways, I will be very grateful.