What would be your idea to implement such a feed? How do you want to know which changesets were reverted and for which reason?
For example: A way has highway=tertiary in version 1, get’s changed to highway=secondary in version 2 as only change in that changeset and in version 3 it get’s changed back to highway=tertiary. Technically 3rd changeset would be a revert of the second.
In other words, you will not be able to get such a feed automatically without an huge a mount of false-positives. In order to have a somehow useful feed, users who do a revert and think it was vandalism what they have reverted would need to add their changeset and the reverted changeset manually to your feed. I doubt, that will work out reliable and put additional effort to the guys which have already limited resources.