Watch your wording mate. You can criticize the process and handling as much as you want, but insulting the people behind it is a no go.
That being said, you do realize that your standard is unachievable? Your putting higher hurdles on someone getting banned in a video game than people getting sent to jail in real life.
In the rarest cases you will have doubtless video and audio footage of someone committing a crime. Would you let a drug trafficker go because there is no video evidence of him handling drugs (not related to Seeking in any sense)? Just a lot of fitting phone connections, emails/notes, potentially DNA on a package but that could have gotten there in another way. Circumstantial evidence is being used every day, every where. The only question is how much evidence do you need to minimize the number of people being hit falsely.
And again, you can criticize the handling of this case as much as you want. For what it is, the discussion here has stayed very civil. Even if you disagree with making this public - and there are quite some arguments for keeping it private - "lynching" is the wrong word for it.