That means nothing. One can be mistaken or one can be lying. Recently, a guy that signed up in 1999 took my post to task and said it was false and if I had read the previous threads I would know what I was talking about.
Another poster came to my aid and showed that in the previous threads, he had participated in ONE with two meaningless posts while I had posted 136 times on ALL threads.
Bottom line - I take noones word if I believe it to be biased based on his agenda. If he is going to post it, he better be able to back it up or go home.
Ichneumon is notoriously of the same discipline wrt research. However, either of us are just as likely to bury a thread with sources - so we broach such posts cautiously.
But not all Freepers or Lurkers keep such exhaustive archives and asking everyone to post a source may be burdensome. If sources become a "horn of contention" in future discussion, I'll be glad to help if I can.