I was on the fence about it until today. Here's why. There are some people curating #stem just to get 50/50 curation rewards. When those tags were not muted, it was far too tempting for bad curators to just rake it in.
Yes, I have also seen perfectly acceptable submissions with actifit tags. I have enjoyed using dlike in the past. But the risk of stakeholders who mindlessly curate the other 99% just isn't worth it.
Personally, I think this proves how bad 50/50 actually is, if front-ends don't manage things closely. I'm willing to stick to it and keep the tag-mutes because it balances out the time it takes to find the 1% of good content on those tags.