When I registered a decade ago to be a closed beta tester for the newly born Webroot, successor of Prevx, it was indeed very good and shown lot of promises. I was a big fan, I was the one heavily promoting it here at MT, made reviews and guide to show how potent and promising it was.
Sadly during this decade of testing, it didn't improve by a cent. Slowly falling behind every others.
For example, took them a almost a decade (until last year) to implement script blocking where others had it since ages. They promised anti-exploit a year ago, well it is still a promise...
Sure fanboys have their part of responsibility, they all had the same stupid argument " I never got infected so it is super-strong" sure...but did they ran scriptors or more complex malware? Serious pentesters did, Webroot failed...
It failed so much that they found a revolutionary argument "people don't know how it works", sure there is many security professionals and experts who tested it, but when it comes to Webroot, they suddenly all becomes noob lol.
To me the real responsible is Webroot itself, fanboys are peanuts distilling their biased opinion only on forums. The Webroot dev/support are the real problem denying reported vulnerabilities discovered by their own consumers/testers.
When i use a security soft, I don't care how light it is if it can't protect me against modern conplex malware. I don't care about the ordinary ones, I care about threats average product can't stop properly.
I still have my closed tester license, I don't even use it. I wish I could but Webroot doesn't fill any role in my security strategy, I even prefer WD lol.
I still hope they improve, because I still like the concept, and we all know harder you like something, harder the criticism... but more i see, less hope I have...