Sure, but those players are risking a ban.
What a ban means I'm unsure but I suspect at the very least the hero's and items they attain will be confistcated/made unsellable. Their crumbs that are still in game might be confinscated as well.
There's ways to bypass rules but there's ways to cach at least a portion of those who break the rules. Once someone is caught and the raminfications of cheating shown, that might be enough to deter others.
In any case, a stance on bot use has been taken and I for one am happy about that.