it is because it is all ego and no cash that people are scrupulously honest.
For instance, I get called out every week or so to talk about Dark Armor when people ask questions. People know I know it and will (grumpily) explain my take on it.
People (those that been around) have a pretty good idea I do not do PvP and am not a speed runner. So.... If I start bragging and posting I did the Kessel run in 2 parsecs.... Not gonna pass the smell test. Meanwhile people that have been running scrappers for almost 2 decades know exactly who they are and relatively what can be done, and by who.
The point behind the following two items. We know Hafthor is in the same strength range as Eddie. But Eddie beat him at a World Strongest Man. Hafthor is pissed. Hafthor "should" have lifted in a regulated competition. Everyone knows that for a world record. Hell, at least have Guinness book on hand. But he just does it at his home gym. Maybe he did it. Hell, he probably? did? But that is not the way it is done. Eddie lifted in a verified event in front of a crowd with judges and verified weights. (judges are important for lockout...) This is especially important since Hafthor has tried and missed 501 in competition...
Eddie Hall, 500 Kilo deadlift in competetion:
Hafthor Bjornsson 501 Kilo deadlift, not in competion, plates verified by his DAD!!!!