Some thoughts in no particular order:
A) Everyone is free to set prices as they see fit. At the same time, it's going to look lame when you fudge with them (particularly upwards) after something has been listed. The flip side of being free to set prices as you see fit, is that others are free to comment as
they see fit, and if people see you bouncing your price around (particularly upwards), you've gotta expect some feedback
B) A WickedLasers LPM chart doesn't count as LPM credentials. Anyone can make a graph. I'm not saying their charts are wrong, I'm not saying they're right. I'm saying we have no idea what those charts are, and they don't count as "LPMing". Not even "sort of". In fact....
C) ...previous LPM charts from someone other than the current owner, are barely adequate LPM credentials anyway. For one, time can change a laser, particularly a DPSS laser. The output of a laser, months after initial LPMing, can be different (generally lower in the case of 532nm). Even further, the laser will have been subjected to shipping in between the LPMing and the lasers current home, which means vibration as well as potential temperature change.
D) Discount relative to "retail" is not terribly critical to the price of the laser in the case of a WL build. They're over-priced to boot.