If they really want to keep the new date/timestamp format, then this clearly belongs as a user preference option.
Any respectable piece of software used by a very wide array of users would allow date/timestamps to be formatted based on user option in that case. And since Huddler seems fine enough w/ allowing user options in other similar cases, why not do so w/ this, especially since they're even going thru the trouble of having the mouseover feature for alternate formatting?
And yeah, I would never think to try the mouseover for the more consistent -- in our opinion, better -- formatting in this case, if nobody told me. That just seems like a rather user-hostile way to go. If you're going to do stuff like that, then there should at least be some readily accessible release notes to inform people of *ALL* such changes, but either way, forcing people to use mouseover for this is just plain bad form. Who the heck really wants to have to do mouseover for something as quick-and-simple as looking at the date/time for a post? That is just ridiculous!
So here's my sidebar question then, which I alluded before. How the heck is Huddler making these (re)design decisions, etc. and prioritizing them? There are better issues to fix/enhance than something like this. And if you're going to bother to "fix" what ain't broke, then at least do a more thorough job of it, eg. offer user options w/ proper defaults, no?
_Man_