While it looks like glider pilot Robin Flemming may have been "ok" with regard to NOTAM 4/0811 (assuming the quoted FAA interpretation allegedly posted on the SSA website exists, and is not misquoted either on the SSA website or by Ms. Brown), that he may still have a problem with FAR 91.119. We all know that flight above "congested" areas must be at least 1,000 feet AGL. Flemmings on board flight recorder reported his MSL altitude as 1,518 while he was above the power plant with a charted maximum elevation of 577' MSL (an AGL height of just 941'). Flemming has admitted (a) that he knew he was over the power plant; and (b) that his "lowest altitude" while over the power plant was less than the FAR 91.119 minimum.