Way back when, my friend Richard Donninger collected hundreds of Levallois artifacts from a deflating, single component site. When he tried to tell people about them, they treated him like an escaped mental patient. Long and vicious was the scorn and belittling @ arrowheadology, all by arrowhead collectors, sure that Levallois technology couldn't possibly exist here who wouldn't have recognised it if they found it some morning in their cereal.
The kicker was that Rick, a sign painter by trade, had bought a library of scarce and very expensive books on it, all written in French, which he learned so he could read them.
He probably knew more about that technology than anyone else in this country, credentialed or not.
Even the alternative archaeology people who were on some pretty shaky ground themselves dissed him, publishing an article he wrote but loading it up with caveats designed to belittle the value of his discoveries.
part 1
http://pleistocenecoalition.com/newsletter/march-april2015.pdf
pp. 10-12
part 2
http://pleistocenecoalition.com/newsletter/may-june2015.pdf
pp.13-15
He even went so far as to enlist the help of the most Levallois-experienced archaeologist in Britain, sending him artifacts he identified as unequivocal Levallois tools.
But mere evidence was useless when dealing with people in no mood to consider it. He pushed and he pushed, finally wrangling a promise that he's be given table space to exhibit a sampling of his collection at the PaleoAmerican Conference that Stanford & Bradley made such now-famous pre-Clovis waves at.
When he arrived (at his own expense) to set his display up, he found that he'd been assigned a room in a different building, a block away. His name was not on the list of exhibiters in the program, and he was forbidden to even post a sign alerting people to the fact that he was there at all. A more efficient, total non-personing could hardly be imagined.
I even wrote a song about him you read a while back, which I'm not going to bore you by repeating.
Stuff still gets my dander up. Sorry.