Imo the issue is the scope. The best communities online are independent (no reddit or other) forums dedicated to specific things, often moderated by someone payed to do that.
If your incentive is growth and income and the community's incentive is pertinence either you or the community will have a problem, unless you understand how to manage that equilibrium.
The issue imo is not self regulation mechanisms like voting and weights, but law enforcement and responsability towards the main subject and the community
On llama.cpp the context buffer is allocated at start, so you mist be using something else. On llama-server if it does not complain after loading you usually are fine.