Re: Is it time to change some negative trust ratings to neutral or delete them?
When Lauda got removed from DT for various reasons. A few users took it upon themselves to copy verbatim the negative trust feedback Lauda had left. (It's been discussed elsewhere who and why etc). What they've done by taking a snap shot of Lauda's distrust feedback is lock users into negatives.
If the ratings were given to proven scammers and those who attempted to scam, I have no problem with that. If they were given for other reasons, they might deserve a second look, depending on the case of course. Are you talking about a particular case? Unfortunately, everyone is allowed to write any trust rating they see fit because no one checks or controls what is written there. A bunch of members (including myself) got a negative rating by some newbie a few years ago for wearing a FortuneJack sig. The user played and lost money on FJ and what better way to avenge himself than to abuse the system and tag those who advertise the casino.
Unfortunately, I've already had to add one back for a user who immediately began harassing me after I removed a feedback rating for them threatening to physically harm me.
So you are getting harassed by the member you removed the rating from? He is angry that you changed your mind and decided not to tag him 
At some point I hope these abusive negativity spreading users realize they're only training newbies how to avoid being linked to their scams and that their attempts to save the gullible are realistically training otherwise harmless scammers to be better at what they do.
That reply of yours reminded of my thread Should all scam busting techniques be made public? Many scam investigations are also a way for scammers to train on how to better themselves and not get caught.