This could've been a brandable, except its someone's name.
If you're in doubt, let the domain expire, then watch out for offers during the grace period (13 days with GD) - ironically, this is the time your domain gets the highest possible FREE exposure across multitude of domain platforms!. If you're with GD, duly compare any hike in whois search count
WhoisCountsCurrDay, WhoisCountsCurrWeek with previous data for the domain. If there is hike, then extend and keep the domain.
This is year alone, I've sold about 5 "doubtful" domains, using this approach.
humog.com
enif.org
ozigolf.com
and two others.