[Tagging] Dispute concerning shrimp pond dikes

[doug brown]

In the past couple of years I have spent several tens of hours digitizing the shrimp pond dikes in San Blas Municipio, Nayarit, Mexico.  They are a significant feature on the local landscape and of importance because of the degradation they are causing in the mangrove forest ecosystems in which they are located.
I was much dismayed this past summer when all of these features were deleted from the OSM data base (changeset 11807195), with the comment "Deleting vandalism, those are not roads".
The tags I used on these features are as follows:
access = privateembankment = yeshighway = unclassifiedman_made = dikename = shrimp pond dike
My reasoning being that all of the dikes have, at a minimum, a footpath on top of them, with most having a motor vehicle accessible road.  While they are all private roads, most of them are open to public access and I frequently ride my bicycle on them.
In early December I wrote to the person who made these deletions with the intent of starting a dialog about his concerns, but I have received no response, and I am at the point where I would like to use these data in conjunction with a community environmental education campaign.
So, I would like some advice about:
1) Is this tagging scheme appropriate, and if not, what changes should I make?
2) Is there a way to roll back these changes (with modifications you may suggest to the tagging scheme) so that I don't lose all of the work I have invested?  If so, could you point me to some resources that will teach me how this can be accomplished? 		 	   		  
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