I didn't get the impression that anyone in the recruiting department had spare time to cruise these or any other forums to find people to blacklist. Nobody is watching, so chillax.
However, spot on about this not being the forum to register your complaint. Same logic applies, nobody is watching.

My first airline gig was in a Reservations center. Thousands of people answering phones 24 hours a day, 7 days a week, 365 days a year. Now there are just a couple hundred res agents left. I suspect attrition has not improved morale much. And perhaps tribal knowledge has also deteriorated.

Anyway customer care is the place to bring this to the attention of the people who can change things if they see fit.
https://www.united.com/web/en-US/con...r/default.aspx