Hi Dimitar,
Thanks for the update, I'd be curious to hear what they have to say.
Ask them whether they will accept indiscriminately all requests or try to work on a case-by-case basis for some websites such as ours. Specifically for WP, someone could want to try to hide an article containing "damning" yet very public information (it happens regularly with politicians), whereas some former contributors (particularly those using their real names) could legitimately want their participation in some (heated) discussions on talk pages to disappear.
Regards,
SCM