Uhhh venting

So like every game I'll have at least this one enemy that keeps on bming or flashing mastery. It gets kinda annoying with them putting out "?" whenever they make a small play or get away with no HP. Or even justifying their death by saying "Wow you guys used everything on me, bring more people". What I'm trying to say is, occasionally I'll win a game against someone like that and I feel it be necessary to say "Gg Ez", and "Trash" + enemyChampThatBm'edAllGame. Would that get me banned if that's the only thing I've said all game to the enemy? I mean I see people getting banned for a small thing so I'm just wondering if that cherry on top to piss off the bmer would get me banned ya know. Just want to be safe in my small ventings in game.