Cannot pull request on wiki

Hello. I use the wiki feature on bitbucket. I like to keep the wikis public editable because it allows users to assist in documentation. However as described in issue BCLOUD-12624 I saw a spammer begin to attempt to use my wiki pages to host spam, so I have had to make the wikis private-edit. This is too bad because now it means users cannot help with the documentation any more.

The wikis are backed by mercurial and can be checked out and edited using mercurial. I would like to request that it be possible for a user to pull-request changes to wikis, so that users can still help with the wiki without the risk of defacement or spam possible. Currently you cannot fork a wiki and there's no way to use the pull request feature with a wiki.

I would like to note GitHub already offers this feature (because their equivalent of the public wikis is the gh-pages branch which the existing pull request feature can be used with).