Ok Mr. Detective, do you know if he edited that message? There is nothing in the message itself to indicate it was. You didn't respond to it for 17 mins. Did you see the message immediately when he posted it? From the message it looks like he started to write it, mentioned he was looking at selling, paused, it sold so added that on, possibly paused again to see if there was anything he was going to add, and then finally posted it. The message he was replying to was from 6 mins. before and during that time it was at the price he said he sold it. I don't think he was worrying about making his message all pretty and neat so it would pass the Alex test.
-- in a previous post you said he doesn't use real-time charts. --
Go ahead, ask him. Us traders these days are spoiled by real time charts. Way back when you didn't have them. If you developed a trading system back them, obviously it wouldn't use something you didn't have. Like duh! And if you ever bother to actually learn his method would see it doesn't need real time charts. They just add clutter and distract you. Why change what you've found to be successful.
Now the question you should really ask yourself is, if he's not using charts during the day, and yet he has an ungodly number of people asking him for buy, sell and SL levels, how's he coming up with the answers? I'll leave you to ponder that.