The description for PB&M on Boards reads:
This board is all about fostering a healthy community in which discussions can revolve around player behavior systems or in-game suspensions. This includes topics on how the systems work, insight into why players were punished, and advice to help players improve moving forward.
You are not fostering a healthy community by being toxic.
Here are the universal rules for Boards
From Universal Rules, at the very top:
Golden Rule: Always be respectful to players, community members, moderators, and Rioters. Harassment and insults will not be tolerated (“just playing” is NOT a catch-all excuse).
While his comment may be seen as wrong by most people, it's at least not directed towards any one person
then you will eventually get perma banned if it is against riots behavioral policys , it will be deserved and the community will be better of without you..
kthxbye felicia
Your comment however, by using you, is singling him out and harassing him. This is toxic.
I don't think you picked this up based on the previous comment (I put a misspelt "toxic boully" and "-Riot" to try to make it clear that I was satirizing), but I'm just showing the flaws in Riot's strict anti-toxic policies.