First things first, follow @speed.police, they are the real authority on this subject.
I have seen a ton of clips on instagram recently which I believe are sped up. I'm not gonna come out and point fingers and claim I know for a fact that x or y is sped up, because honestly I don't know or have any sort of proof. I just have a suspicion and it got me thinking that there is little discussion about speed-manipulated footage in MTB.
There's plenty of space online for a) people with ridiculous bike skills and b) people who are charismatic, funny, knowledgable, or otherwise likeable and worthy of following. If someone has to speed up their videos to get people to pay attention to them online, they probably don't deserve that attention in the first place. Also, there is a lot to be said about social values if people really are speeding their shit up and getting rewarded for it.
Additionally, it seems like there is an incentive for riders to manipulate their footage now that a) riders can make money through insta/youtube/etc b) the influencer marketplace is crowded and c) riders more or less have a degree of control over the discussions which happen on these sites (note: I am referring only to rider's personal insta/youtube pages on which they can moderate the comments. Obviously once something gets on vital/pinkbike/etc this doesn't apply.)
Also, I know that videos lie and that a good editor will cut regular speed footage in a way which suggests that the rider is going faster/bigger that they really are (like a pan-and-zoom corner slap). To me, this is fine, as it is more a mark of a skilled filmer/editor than a compensation on the rider's part, as the footage they use is not actually being played at a speed faster than what the rider was going.
So vital, what do you think? How common is it for riders to speed up their footage? Are you all okay with people speeding up their clips for reasons of fame/insecurity/#freeshitbro? Should people be called out for this? Is speeding up footage the new equivalent to sandbagging?