Every time I add a comment, the exact same 3 people will "like it". I know that a human is not liking the comment themselves, it must be automatic within the app by the system. Does anybody else get this? Is it a bug with the app?

Hi I didn't notice this for my questions. I scrolled through the questions after you mentioned this but I saw several questions without Likes too. I think it could be the few active users of the app who are liking your question. Don't think anything is wrong, it is good people find your questions relevant :)