People don’t have the time/will to research alternatives, that’s why most of us follow trends. It’s the old mantra “if is good enough for him…”, and honestly, i don’t feel to blame anyone. Computers by now are a necessary tool and people want an easy “switch an play” solution to use it.

we can receive likes and comments from them

They didn’t see the groups, but can follow us as users and like and comment anything we post.

For now, that doesn’t seem to be the case, but at least we can receive likes and comments from them.