Having curated my Lemmy Explorer list to specifically exclude subjects beyond my interests, I don’t usually make use of the ‘Random Community’ button. After just tapping it a few times in a row, however, I noticed that it seemed to be drawing community names from a tiny subset of the 933 communities that I haven’t blocked.

People with shorter block lists than me are likely to have a greater degree of variation from the randomizer. That aside, of the hundreds of options it should have been able to choose from, the randomizer only selected the following nine communities during my extensive testing of it:

Entries near the start of the list were chosen more frequently than those towards the end of it, for some reason.

Community randomizer bug example.