Agree!
I don’t have any problem burning a bridge if it’s a bridge worth burning.
Two examples:
The (then) coach of the equestrian team at my school was abusive to me and my horse. I wrote a letter to the head of athletics. Nothing happened but I got it on the record.
When people asked about the coach on COTH a year or so later, I issued an honest warning.
A couple years after that, I was contacted on COTH pm by another college equestrian program he was applying to for a coaching position. They did not want him to be hired but were concerned the board would make a different decision.
I wrote a letter to the board of the new school describing my own credentials, described my experiences with his unethical and abusive behavior, and said I did not require anonymity and would be happy to put my name, reputation, and telephone number behind my words.
He wasn’t hired, and I heard my letter was helpful toward that end.
Good. Karma took a while to come around but it did eventually.
Example two:
I worked at a dressage barn where the trainer was kind to the horses but treated the staff terribly. When I left I sued her for labor law violations. I was perfectly fine financially and had better connections in the horse world than she did, but wanted her to answer for how she treated her staff. Sent a process server right down her driveway with nary a qualm. Literally served her right.
Haven’t regretted either course of action and have been perfectly fine in the horse industry before, during, and since. Sometimes you have to stand up for what’s right.
I try to live by the mantra to be decent first and only fk with other people if they fk with me. 90% of things I will let lie without further drama but if you are abusive to me, my horse, or people I care about, it is not going to go over gently.
Nobody worth a hill of beans has ever blacklisted me for any of the above.
And quite honestly, those people who have been shitty to me along the way have received their karmic comeuppance whether I had the opportunity to help it along or not. And for my part I am quite honestly doing better than ever.
People really create their own destinies and while there will always be some turkeys, 95% of the time, if you are always decent and fair in your dealings, you’ll have built a reputation and relationships that can withstand burning the occasional bridge with someone who has earned it.
As for this OP, since this happened years ago and you are only finding out about it now that you no longer have dealings with them, there is no need to reopen dealings with them to address ancient history.
Feel free to be honest if asked for a recommendation, though.