Custom weapons should still work with sv_pure an´d if it was sv_pures fault he would just not see the new weapons it would still be the standard weapons and not a wireframe model of the new one.
I just follow Noths blog but on youtube i follow several people like Linus Tech Tips, DarkMX1000, Flashbuilding, HardwareCanucks, maxishine, phpacademy, Sabaton, thisweekinlinux and several more.
It would just be boring if you can't prevent people from driving pas you or you would just drive straight through them when you go to a turn. Not fun. :/