Here's an example:
http://www.geni.com/merge/compare/6000000003221445041?from_flash=1&fsession_id=1311390120291
You will notice that request is from late April 2011 so presumably is going unanswered. The pending merge request sits on the tree as a blue "pending merge" conflict and disallows progress in tree cleaning.
Please give everyone the option to SEE that this is a private profile and an opportunity to CANCEL the requested merge ... or not propose it to begin with.
Many thanks
Erica, Volunteer Curator