Am I misunderstanding this - you want to replace a recognised symbol with a symbol that’s already being used by another group? That seems counterproductive at best.
I’m also wondering, have you spoken to anyone with poor eyesight? This is my reply to a comment below suggesting that the new symbol would be easier to read:
I’m reading this thread on mobile, and the fediverse logo next to the community name is much easier to see than the three stars. If I didn’t already know what the three stars were from the rest of the post, I wouldn’t have a clue what they were supposed to be in the body. They look like a blurry capital A. Obviously the fediverse logo is bigger there, which helps, but it’s not significantly bigger, and would still be clearer at a smaller size