Yes. Some people like posts almost as an acknowledgement they've seen it.Yes, but there is a way to achieve one’s ambitions whilst showing respect for those currently supporting your career. As a side issue do people really ‘like’ posts without thinking ? That strikes me as a bit thick.
They may also have seen the post and assumed that Moises/Arsenal had a fee agreed with the club and was moving.
I wouldn't read too much into the likes. Trossard was liking a number of unrelated club Instagram posts at the time of the bust up