Why let poisonous people destroy legit threads?

Dear Mods, 

I wonder why people like LogCottage are allowed to scare off legit members away from popular threads? I - for  example - wanted to post in one of the threads in NFL forum, but once I entered and saw that at some moment that poisonous person started to act like he owns the thread and started accusing every poster of being part of some sort of scheme  - which I'm sure most posters do not even have an idea what it is - I decided to stay away just not to get aggravated. 

I'm sure there are lots of other members who also aare staying away from the threads where LogCottage is creating havoc and hijacks the thread to the point no one posts to the subject of the thread but throwing punches at each other courtesy of LogCottage.

Something has to be done in that regard if Covers wants to maintain and retain normal members who don't come here just to look for the trouble.

Thanks. 

https://www.covers.com/forum/nfl-betting-21/who-is-wrightthebright-103490528/3#last

@Grunger1972

 Thanks for bringing this to my attention