As for PSP, I don't know enough about the details of that case to make an informed opinion.
The primary piece of evidence was a public log that he kept on his website, showing scores for over 400 attempts that spanned a period of five months (6/2010 through 11/2010). The log is long gone from his site, but it was saved and shared. The top score in this log was 364,400 points (achieved on 8/19). The log stopped abruptly on 11/15/2010, but on 1/31/2011, two and a half months after the last update, PSP suddenly appeared on Facebook with a cryptic status update claiming a killscreen with a score of approximately 841,000 points.
After playing regularly for five months and meticulously logging his results for all to see, his best score (which was itself well beyond his average) was less than half of 841,000. The average score for the final 20 logged games was 215,000, about 25% of the way to 841,000.
So, PSP is asking us to believe that while it took him five months to attain an average of 215,000 points per game, he somehow managed to quadruple his ability over the next two months, without so much as a peep about his suddenly-accelerated rate of progress... which just
happened to start accelerating when he stopped publicly logging his scores. To this day, PSP has yet to play a single game of Donkey Kong in public, either on stream or in a live venue, and made it clear before the Kong Off 3 in 2013 that he would refuse to do so if asked.
If anyone has the temerity to question his extraordinarily implausible claim, rather than engaging in a discussion on a public forum, or streaming some gameplay, or producing any additional evidence, he will simply attack the questions from the safe, controlled confines of his Facebook feed, and insist that he will only discuss it in a private phone call.
I do recall him making it very clear that he did not lie about reaching the KS in DK.
Yes, he has "made it very clear..."
Egotistical pathological liars will never accept responsibility for their actions.