Reddit and Youtube are becoming more and more draconian for one reason. They REALLY need people to stay on their advertisement platform. For instance Reddit has always had issues with its content clashing with advertisers. Youtube I think has gone into rougher times with its relation to advertisers (I remember proctor and gamble pulled their ads). When your advertisers complain about your platform having content they don't want they will remove it with extreme prejudice.

As an aside I am also dismayed in the fact that I find videos like these interesting but I will never own a gun but I like watching reviews and demos of them.