Shouting out @MinimalGravitas, Optimism Agora
MinimalGravitas is an active delegate and votes on all proposals, but doesn’t comment on every topic, so they may be underknown. However, when they do, it’s always highest-quality and adds something meaningful to the conversation. As an example, this is their recent brainstorm on Intent #3.
There are many high quality and active delegates that have slipped under 0.5% like @Joxes, @OPUser - I hope others will give them the spotlight they deserve.