Lemmy faces the same expectations problems as every free/libre software
It's the same as with Linux, GIMP, LibreOffice or OnlyOffice. Some people are so used to their routines that they expect everything to work the same and get easily pissed when not.
The problem is it takes time and money to do that, which you can't really get without some kind of structure. I've been wondering what a tech cooperative might look like lately. All the weight of a company like reddit, but owned by the users