The WordPress trademark and domain names 

A friendly reminder to plugin authors: Per the WordPress trademark policy, do not use “wordpress” in your domain name. We have been actively notifying developers that reference such domains in readme files or plugin headers. If you are violating the trademark, please update your plugins. Your next step should be to switch to another domain.

As our page on wordpress.org says, “We see this most frequently with spammy sites distributing plugins and themes with malware in them, which you probably don’t want to be associated with.”