Not sure if it's already been mentioned or not but the Opera browser seems like it has some pretty decent security features. Comes with its own adblock and free VPN along with inbuilt cryptowallet support. Mind you, I wouldn't do anything crazy with their VPN because they probably still have all your info, but it would be really useful for people skirting around ISP and government web censorship. https://www.opera.com/
Also @Null, I'm not really sure how feasible this is, I know nothing about running a forum, but would it be possible to add a search function that allows you to search for keywords only within certain topics and not the entire website? Something like that would go a long way toward finding specific information and also seeing if someone else has already brought up a point previously. REEEEEEEE.