The warcraft editor is a nice toy to make warcraft maps.
It is designed to make custom melee maps for the standard warcraft game.
Custom maps with own gameplay are possible but not supported since the editor was not originally designed for such a purpose.
The starcraft 2 editor is designed for full flexibility and possibilities without borders (exept obvious ones).
You might imagine how much more complex it is to work with it though. You need almost professional experience to work with that thing to its fullest.
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.