Niall Breslin says society must decide what to do next in relation to online trolls.
The singer and mental health advocate was speaking after the death of Caroline Flack.
The former 'Love Island' host was found dead in her London apartment on Saturday.
She'd been due to stand trial in March for allegedly assaulting her boyfriend, Lewis Burton, last year.
Bressie says this is a watershed moment for everyone.
"I think this is a symbolic moment, I think this has been coming, I think this is not going to stop unless we do something about it.
"What we can't let happen here... Something bad happens and two or three days later the press are talking about something else."
"The reality is we speak about the tragedy of Caroline here - but this far bigger impacts than anyone really thinks.
"Somebody who is at home, who's in a trigger state, who's distressed, who might be going though some of their own difficulties - this can be incredibly triggering.
"It has immense, immense societal impacts and I don't think people are talking about that".
Author and musician Niall Breslin pictured in Book Upstairs book store in Dublin | Image: Leon Farrell/Photocall IrelandOn online trolls, he said education is the key.
"This is being fuelled by tabloids... and they're exploiting what is a fundamental human trait.
"It is not going to change until we start holding these tabloids to account".
"But also the point on social media, I don't believe banning this is going to work; I believe really, really stringent, incredibly good educational programmes around digital literacy to show how these work - and knowledge is really powerful in this capacity".
Anyone affected by issues raised in this article can call the Samaritans on 116-123 or email jo@samaritans.ie
