I would really agree with that but pictures can be easily edited as followings:
- I can edit genel's one by my own adding my pokes and replacing his starter picture with my stater picture. Chat can be eaasily replaced also.
- I can join the event and shout "LOL A S BIBAREL" because we don't really need to show proof due we can't catch them then so no one will really know if it was true or false information, then I just need to send out by myself some random messages about losing my shiny cause "my membership was broke for like 10-15 days like everyone else" then people will get interested to answer that even if it is with a "LOL".
After that, all I need to do is to upload it on this website and shows as a proof about I lost a shiny one.