It is true that that influences, but not quite, the most important thing is the faithful community that the server can have, I tell you because the server that I played from 2017 to 2019 (server pvp x1200), its admin practically ignores those of their cominity, they are very inactive, apart from that the patch they have is terrible, not to say another word, so you have an idea their patch, eat the ram of a worse pc as if you were playing an h5 server, and they don't they give the option of not even being able to edit the l2.ini or the l2option, to be able to fix some problem of their patch, in the forum there is a post about that quite long, and the admin simply did not want to fix it, and even then the server continues alive and has the same community, to give you an idea, I having an i5 4 generation, with 16 of ram, on that server in epic "baium" clans of 4 v 4 v 2 party, having the heal skills deactivated , and many custom skills with less brightness, my FPS drops to 12 !, but well, its community is very and faithful to the server, and the server will never die, until now,
In fact, I do not like that style of server, and I was playing it for a few years, I will not deny that in certain occasions it distracts and entertains you, but its pvp form is horrible, to see a bishop pulling infinite heal, almost "that closing the eyes and pressing all the buttons of heal ", magicians sticking auraflare and cancel at the speed of light, OL throwing debuff and healing CP, infinitely, etc. etc.
things that in these servers make professions disappear like, EE, SE, SWS, BD, WC, SUMONERS, disappear, by the style of pvp. I only stayed on that server because the server when I started playing it was 2 years old online and I saw that the server was not going to die, as I said before, I do not like to play a server low from 0, that mostly one passes it farm and killing mobs, (mostly those that do not come in CP and without a clan is like that), so that later when you have some items or lvl, the server is dead and without fun, then start another ?, and the same thing happens? .
I play l2 since c1, I and many people are not here to be killing mobs for 1 month, then the server dies, and start another.
Do not confuse the server where I was, it is not that I had 42313214311 people online, in fact at most I had 200 to 400, but the secret that the admin made, and for me it is there for which his community does not die, it is because he reduced the spots of farm, the server has only 2 farm spots, so the whole server concentrates on those 2 spots and there is always pvp, war, agites, etc.