Caturday cat photos: a weekend social media tradition

1. What happened

   "Caturday" is a weekend tradition of sharing cat photos online, combining "cat" with "Saturday." A Bluesky custom feed named "Caturday cat photos" collects posts on this theme, according to its listing.

2. When it started

   The source provided does not state when the tradition or this feed started. Posts are typically shared on Saturdays, though the source does not confirm specific dates.

3. How it spread

   Users share cat photos on Bluesky, and the custom feed gathers posts under this theme. The available source is a single feed page, so details on how it selects posts are not confirmed.

4. Why it matters

   The tag reflects a lighthearted online habit of sharing pet photos on weekends. Specific trends or reasons for its popularity are not described in the provided material.