As I do the series of posts on the OSR for the Lapsed Gamer, one thing I try to maintain is impartiality when highlighting the different rulesets.
In doing so, I've reminded myself of just how many of the OSR styled rules I've played, run or both.
Castles & Crusades - 2 short campaigns as a player via Fantasy Grounds 2
ACKS - run via Google Hangouts / VTT
DCC RPG - run and played via Google Hangouts / Roll20 (all that follows used Hangouts / Roll20)
OSRIC / AD&D 1e - run and played, using OSRIC and 1e interchangably
S&W Complete - run and played
LotFP Weird Fantasy - played
Which still means that the vast majority of the rules I'll be mentioning I HAVEN'T experienced in actual play. So many rules, so little time. If I make a statement based on a read through of a rule set that isn't accurate in actual play, call me on it and I'll correct it.