Perhaps that's a bit of a concern. And while I'm dealing with it, I don't think you're in hot water with the mods here since you've brought up concerns about our reputation and how to protect it. Normally, linking to a place where someone is attempting to exploit (and even then, is this really an exploit, we'll see...) would be bad news. Calling attention to this sort of concern, however, is probably fine.

Now, perhaps Blizzard intended that people extracting at the same time might get a mote as they would if it was just them. Or it could be a glitch. Keyclone is not helping or hindering that since a group of people could do that anyway, Keyclone or no.

What you do need to watch out for is unauthorized versions of Keyclone floating around the internet such as the one that is linked to in that thread regarding mote extraction you showed us. It very likely contains a keylogger or a trojan. That, and using Keyclone without a license is stealing since it is for-pay software. As a developer, I try to pay attention to that sort of thing.

But yeah, I'm not so sure what they are trying to do is illegal, it may just be a bug. If it is, Blizzard will get rid of the bug. Keyclone really has nothing to do with this.