I play SvenCoop a lot and mostly just stick to a handful of servers. The amount of servers is such that discovering new ones is pretty easy. However it also makes it a bit vulnerable to your favourite server getting hit by a DDOS attack or protocol exploit (thankfully that one was eventually patched!).
So there are problems at both extremes.
Never underestimate salty gamers. One entirely reasonable moderation decision against a mentally underdeveloped player with too much money or time and you'll inevitably be ddosed.