I like programming.dev (I am the main poster on !mechanical_keyboards@programming.dev ), but there always seem to be some technical issues with it, the most recent 11 days ago: https://programming.dev/post/31970658
The biggest issue was probably 7 months ago, when there was a database corruption that impacted the whole instance from 13th October to 12th of January: https://programming.dev/post/20515601?sort=New&view=Flat
Preferring one instance (dbzer0 in this case) doesn't mean other instances aren't as valuable, it's just choosing what is "the best fit" for a community