Having said that, is it really the end of the world if large Lemmy instances have ads to make up for any shortfall in donations? Otherwise, how are large instances expected to be sustainable long term, especially if they’re going to ever reach the kinds of traffic Reddit sees?
Limit instances to 2000 users. Rely on donations. Once the software will be mature enough, we will know exactly how much it costs per users. Users can even pay for others (I wouldn’t mind cover the costs for users I would know who could not afford it).
Ads require tracking to be valuable