I used redact to do this and my edits were reverted and my comments un-deleted. Presuming that this was because I used a tool and it was easily identifiable as being done via API, I went back in and manually edited about 30% of my comments last night and noticed that they were all reverted again today. I've now manually gone in and edited all of my comments this morning and deleted them as of about 2 hours ago and they have not returned yet.