"It is impossible to know everything, so you must form an opinion with limited information." - true - BUT - that phrase doesn't help his cause. Instead of going off half-cocked with his hearsay, he could of asked a couple questions of the list and then made his accusations. If you intend to chastise people for some behavior, perhaps it is best to get the facts straight.
"If you think Stallman's information theshold is too low, maybe you need some more information ;)" - Love, the smiley face. Yes, in this case I think the e-mails prove his information threshold was too low and it shows. I think you need to read the whole exchange :)