This is probably an unpopular opinion, but I find the full ISO date a bit distracting.

IMO the date is alright when you're seeing multiple ungrouped items from different days, or for closely inspecting when something was posted. But when a list has items that are mostly from the same day, I personally find the full date redundant and distracting. I mostly focus on the hours and am always bit afraid that I might "miss" that one item is from a totally different day, since my eye is in the hours/minutes.

I would prefer just the hour to be there, but what I find even better is the "X minutes ago" format (when everything is mostly from the same day), as even the full hour makes me do a bit of metal calculation.