yes, cuz the Guide to Reckoning that you posted earlier, I chatted with the author - so posting yet again what Baconn wrote:
Got linked over to this post from I assume Theloras, and I can shed a little light on Reckoning. Some of the info from my 14 year old guide was a little out-of-date: IIRC when the sticky dropped I stopped updating the guide.
Normally if you’re sitting down you would not get Reckoning charges from auto-attacks. However, you could gain charges from random NPCs by constantly sitting and standing up due to server lag: mob would try to attack you as your were sitting, so it’d be a forced crit. However, if you stood up just as you were getting hit, the server would see you as if you were standing and get a Reckoning charge.