How does IOTD work, and does it still work?

I ask this because i'm still seeing a lot of the same images on it that i saw on it almost a year ago when i returned to this site after my long hiatus.

From reading the details of how it's supposed to work, its supposed to scrape twitter for the hashtag #screenshotsaturday, however it doesn't seem to pick the majority of screenshots up.

Does it only pick up those that can be associated with a user account here (e.g. those who put their twitter handle in their profile)? And if so does it detect all of these that it can match?

When i first started here i used to get reputation points for "playing" the game. This stopped soon after i got crossbones+. Is this by design? (not that any sizeable reputation could be gained by this anyhow, just curious...)

Curious to see what those who maintain it have to say on it!

Thanks