Why would someone not like or comment on your posts you make but when you get tagged in something they will?

Anonymous
Question says it all. I make a post and nothing. Only get a reaction if I'm tagged in something. So it can't be where they can see my posts. Just choosing not to interact with my posts for whatever reason. Even go as far as putting my name in a comment when replying to a tagged post, buy never the other way around if that makes any sense.
Why would someone not like or comment on your posts you make but when you get tagged in something they will?
3 Opinion