Well, stem.witness is by us, SteemSTEM - it's in the name. We've been working our arses off unpaid for 2+ years for Steem. The value means little to us personally, but everything to those in the community we've built (that covers 7 languages from Spanish to Chinese).
Throwing that all away by either moving to a fork, or the effects of the fork causing destructive outcomes is too risky for us. Let me have a stable blockchain for once so I can actually bring outside investors in, dang it!