Because it is not against the rules to play multiple Bnet accounts. Reporting someone for it won’t change that. They just have to do it manually, without any software or hardware to facilitate it.
Common Problems
- Is multiboxing allowed?
- I want to report a player for multiboxing
Multiboxing, or playing multiple World of Warcraft accounts at once, is not a violation of our End User License Agreement. Please note, however, that use of all software or hardware mechanisms used to mirror commands to multiple World of Warcraft accounts at the same time, or to automate or streamline multiboxing in any way may result in account penalties.
For more information on our stance about input broadcasting software, see our official forum post.