The way it'll open the doors for cheats is with the q2 cheat protection code and new hacked .exe's that weren't possible b4.
As for protection code, any decent league still going will use a 3rd party tool such as BWAdmin and on public servers, cheating is pretty much a free for all anyway.
Releasing the source primarily means the game has shifted from mainstream playage to mainstream coding (great for learning), which after 5 years of life can only be a good thing.
Id are extremely generous with these kind of releases and should be thanked, so thx guys, especially as it's very well put together and extremely simple to build
Ender, if you've got a forum look out for a request from me...