Servers cost money to upkeep. So owners of big instances could start posting, ads, pin them and ban other users posting ads or delete their posts. This is obviously almost the worst case scenario. I feel that it wouldn’t happen in the near future, as Lemmy grows to become a larger platform. I haven’t seen this type of ads on Reddit so is there something stopping this?
there is something stopping this: the users. vast majority prefers donations as a way to keep servers afloat rather than seeing ads.