Well, as for "Witnessy stuff" I already did two important thangs since long time ago. I've already voted for your witness and I also follow the @witnesspage account. Thus, you can say I'm in the know with this stuff.

HF21, Not a topic that many want to tackle, as it seems

Oh! I've been tackling the topic many times before. Yeah, I did my fair bit of uproar. Just visit my blog and check how many times the HF21+SPS+EIP words are smeared across all the walls. }:)