Trademarks and domains

You can't tell if it is a trademark infringement without considering the whole site. A potentially confusing domain name might be part of that, but that doesn't make the domain itself infringing, so that a trademark owner can take it. Red Hat doesn't own all uses of the word fedora in domain names and should not be able to sieze a domain using wemakefedora. The proper remedy is an injunction on the site and making similar sites in the future (assuming a violation is found).
If trademark owners wanted their own play area they should have asked ICANN to create a .trademark domain (tm is a country code) instead of convincing ICANN to created an unfairly (IMO) biased UDRP.