I wrote a script to review the diffs on the wikis where DiscussionTools is available as a beta feature. It checks the recent changes tagged with our tag, downloads every diff, and then outputs a list of diffs that made any changes to the page other than adding content.

I then manually reviewed the results:

• Only 2 edits were affected by the bug this week
• About 50-100 edits were affected by the bug last week (there are 126 suspicious diffs and I didn't look at every one, just estimating)

Most of the suspicious diffs are harmless: DiscussionTools apparently sometimes removes spaces at the end of the previous comment. This shouldn't happen, but it's pretty low priority.

Full results: