Who knew there’d be so much ugly in these search relstus? While I don’t see much of a point for free themes unless it’s for a private site, I would like to amend one additional thought: The people who release these themes free of charge use them to raise their profile. Unauthorised re-release, with or without modification, is really hurting their cause. Their name is usually cut off somewhere or bloggers might blame shifty links on them. I would always recommend either getting themes from their sites directly or from wordpress.org and support the authors if you can.