And not only because of younger people. (Not sure if they would even care, though. ;-)) But I can see how some things may not be safe for work. And with the userbase possibly shifting towards professionals, this is probably a good idea.
Nice! Maybe we can make this kind of info more common in the entry threads, too. It would be interesting to see if and how people are using experimental and beta features for their entries. It seems quite fitting as the challenge has always been a great place for experiments and feature tests. 
Btw. I noticed the windows build a few days ago. Maybe I’ll find the time and try to build it on Linux. That brush actually looks like a lot of fun!