The tone here makes this sound like an insult, I had to do a double-take. Online discourse is hard!

Murder has irreversible side effects. TikTok does not.

Irreversible side effects wasn't part of the original comment.

Also, any kind of addiction may have essentially irreversible side effects for those who are susceptible.

TikTok is directed at people who's minds are still developing (on purpose). It most certainly does have irreversible effects.