What constitutes Usage Data. Is it sharing the posts I view, communities I subscribe to etc?
Does paying for a premium version stop this data being collected?
What scale is it at and what scale are we comparing it to? For Lemmy the comparison is reddit, and there is absolutely no way donations would cover the sheer cost of compute required to compete with a user base of that size.
I’m not going to bother looking into the numbers but I’m thinking all of the fediverse together doesn’t even come close to that user base.