Comments are disappearing and being eaten right and left, most of mine included. If our friends at io9 are to be believed, it's a known issue: http://observationdeck.io9.com/intermittent-c…
Although "intermittent" wouldn't have been my word of choice. "Persistent," sure, "relentless," I'd go with that.
It's not you, don't worry. And yes, it's terribly frustrating that the usual level of bugginess that we've all come to know and love has escalated into RAGESTROKE territory, but all we can urge is patience.
Assuming this posts at all, of course.