Posting invoices is the worst 🤣 If someone is providing a service and occasionally posts about costs and encourages people to support it if they like it or use it, I think that’s perfectly reasonable. The posting about how much it cost you to run things and explicitly saying you don’t ask for donations for it is totally self-serving and trying to make yourself look good in front of others. It’s bullshit. No need to brag about how gracious you are in front of people.