While I don’t believe IaaS to be selfhosting I do believe self-managed services on IaaS should be allowed here. It’s the same software stack and requires the same skills so both parties gain from having the discussion in the same place.
Not because I think selfhosting is a badge but because I think it makes sense to call things for what they are.

But I’m an old grumpy who thinks ovo-lakto vegetarians shouldn’t have been allowed to steal the meaning of vegetarian or vegetarians steal it from vegans (and now we no longer got a word to describe old school vegans that makes it a lifestyle not a diet.)