Not sure if it's made it onto these boards yet but in the UK at the moment there's a social media tagging trend going around where your hobbyjogger friend jogs 5k, then tags 5 friends to do the same and donate to a given charity.
People are encouraged to post a screenshot of their strava times which has led to a lot of people faking a great time...then getting caught out by the elapsed time vs moving time feature which exposes that people have paused their watch several times. A couple of British footballers have been caught out for it
https://metro.co.uk/2020/04/21/chelsea-midfielder-ross-barkley-accused-fake-5k-time-12587179/
Incidentally I (20:35 PB) checked out the strava entry for my boyfriend's gym-bro friend who was bragging about his 20:32 (6:39 a mile) time and lo and behold, 32:00 elapsed time (10:18/mile). Can't wait to bring it up at the next group call