I understand what anecdotal evidence is. If you would read my previous posts that is why I said it could be this or it could be that "I don't know." However when many people start complaining about similar problems, namely Spyderco's bearing systems, then more weight should be placed on those anecdotes. I'm not telling you what to believe. All I am saying is that there are several reports from people experiencing problems with bearings in Spyderco knives other than the Advocate. I said so myself that could be people messing up their own knives.
Take the evidence as you want it. Clearly Sal puts some weight in these reports as his latest post on the topic states they are now suspending production of all their flippers on bearings.
Please read his latest post. It's near the bottom.
https://www.spyderco.com/forumII/viewtopic.php?f=2&t=74118&start=20