Innocent until proven guilty.
However, I've never really known Cca and only remotely know Skill. So I am not in a position to take sides (which is something some people have a hard time not doing). So with no proof, and Skill's lack of ability to provide proof, there is little to work on here but eyewitness accounts.
If Cca is such a "hacker" and a "jokester" then he will undoubtedly pull some kind of bullstuff in the future. Hopefully then there will be proof to pin him with "hacking".
Patience is a person's ally.