XDCR load is high on idle buckets

I create a bucket called "copy" with no password, and setup xdcr with a new cluster called "me" that lives at localhost:9000. Then I create a replication from default to me/copy and kick it off.

It works, a few minutes later, all my docs are in both buckets. But... the target bucket registers 2-3 thousand ops per second. These are GET ops. Not sure what is happening. Shows up even on buckets with less than five documents.