active community

Check for interaction, not numbers. Chat should get replies. You should see people doing different things (building, trading, exploring) instead of everyone sitting still at spawn. Look for ongoing, maintained work like roads, hubs, or public farms. Discord helps too: regular conversation and player-made posts matter more than announcement-only channels.

No. Performance depends more on settings and culture than headcount. Well-run servers limit abusive chunk loaders, set reasonable view distance, and set expectations for heavy farms and redstone. A server can feel busy without turning into a lagfest.

Anything that feeds on other players being around: shop-focused survival, co-op bases, town builds, light roleplay, and minigames that need bodies. Technical players can thrive too if the community respects performance and the rules around farms are clear.

Usually it is optional upside: a healthier economy, working infrastructure, and people to team with when you feel like it. The main downside is less privacy, so if you want space, look for large worlds, claim tools, or a culture of spreading out.

Consistent enforcement against griefing, a clear way to resolve disputes, and a few shared anchors that encourage interaction without forcing it. Shopping districts, community builds, planned events, and trusted regulars helping run things do more for long-term activity than flashy features.