I followed both /r/keyboards and /r/MechanicalKeyboards at some point, but it wasn't worth my time in the end. /r/keyboards was contaminated with idiots such as someone who kept repeating that Razer Lycosa was a mechanical keyboard with mechanical switches superior to Cherry MX, and /r/MechanicalKeyboards? One word: ripster55. I wasn't interested in his shoes fetish and other crap.
Actually, I still occasionally browse the latter, just out of curiosity. Technical discussions are rare, and the wiki is the same mess as the old GH one.