The Impact of CJGJ on the Bears Psyche in one Tweet

He got the flag because the refs are putting him on notice. While he did not put his hands on anyone, the refs are saying.. Hey young man we see the games you play and you are just as guilty because you baited the response. In other words.. Stop instigating lol.
He also deserved the flag.

From Section 3, Article 1 of the NFL rulebook
(b) Using abusive, threatening, or insulting language or gestures to opponents, teammates, officials, or representatives of the League.
(c) Using baiting or taunting acts or words that may engender ill will between teams.
(d) Any violent gesture, or an act that is sexually suggestive or offensive.