I think its completely on topic personally.
We should keep in mind that self hosting means different things to different people. For some (and probably a huge chunk of the fediverse) its about working towards being free from the oligarchs, controlling your own data, etc.
But for others it may be just sharing some movies with friends or being able to watch high quality when you have two tin cans and a string for an internet connection. It may be trying out different technologies, maybe learning a few things to try and get a few more bucks a year. It may even just be they can't afford or just don't want to pay for the five subscriptions they'd need to have their bike computer sync up with their fitness tools so they can estimate their caloric needs better.
And none of these reasons are wrong, just their own reasons for wanting to selfhost.
So I hope everyone will continue to keep that in mind in the comments.