that's where you're wrong "mate", we absolutely have every right to speak out against abuse. and abuse is a regular occurrence where this software is involved. Just look at the controversy a mere posting here has brought up. This happens almost every time the software is mentioned. Just another example is here - https://www.reddit.com/r/homeassistant/comments/1ngn3jy/comm...
Also "mate", there is no harassment here. By his own words, the dev does not want people to use his software. So the more people we warn, the less people he has to interact with, which is a net gain for him. We're doing him the biggest favour.
You are harassing him and every person you contacted thinking you are helping them. Seriously, move on. If you guys were from the same country, I'd recommend him going to the police. People like you are dangerous.
Nobody is harassing him, people are talking, and people are free to talk about a person who was abusive, it's something called communication. Something you're not used to in that Telegram group.
At this point it's the opposite of harassment, people are actually saying how he should be avoided at all costs and how it's painful to deal with him.
Btw you are the harasser. Just do what you should have done long ago, disengage, move on.