While it was about popularity obviously, as it always is.
People did not mess with Meek's ways, Drake put on for him all the time, when he was locked up had his chain on, his face on his shirt, posted his shyt on twitter etc. Just months before that he was on his own team mate Wale talking the same shyt. Before that Cassidy talking about he's too rich to battle nikkas like Cas, stays shytting on "broke nikkas" etc. And then he talks in circles for square nikkas, talking about people being jealous of him when no one, ever, said anything bad about him or anything like that.
He turned the people, and then all he keeps on doing is posting rollies and ice on the gram saying that people are jealous and broke.
That's why so many people shytted on him, specially on his own favorite source of shytting on people. That's it, he became a very unlikeable person over the years. Just as he's on his way to build up his rep, he goes at the nikka with the most fans at the moment who rode for him the most, who nearly everyone was fukking with at that point and tries to assassinate his character

. It's obvious that he acts on emotion and rarely uses whatever is in his head.