After switching over to Feedburner for all my feeds and turning on statistics I’ve come to the conclusion that there are definitely some ill-behaved readers floating around out there…
This is a partial snapshot of the clients that have been hitting my feed and by far Opera is just hammering my feed for the few clients that are using it….
In comparison NetNewsWire has 4 times the number of clients and is 1/20th the bandwidth hog vs. Opera RSS Reader.
Opera 7.5x has some problems respecting If-Modified-Since. These problems should be fixed in 8.0 Beta 1.