Don't know exactly since he wasn't actually caping for XXX or anything, in fact it was the opposite, but maybe he was too harsh to some posters or something? Not sure; haven't checked all his posts from today.
On XO Tour Llif3?? I never would've made the connection.
EDIT: Checking RapGenius rn. LOL, all this time I thought the song was about some emotional "I'm lonely, my friends are dead, fuck my ex" shit and that Uzi was just not staying on topic much in the verses.