Most DHF proposals that got funded are "recurring" proposals from well-established "authors" with a track record.

I agree maybe we haven't got a "killer" DHF proposal. Well, maybe VSC, we will see. Maybe a few others, but only partially. The stabilizer one was very efficient both doing its job and creating profit for the DHF, but I would put this one in a special category.

When the market cap is low, some very low sell orders can create pressure...

That's the point, if we have a significant daily transaction volume (mostly on CEXes), that shouldn't matter as much, even for a low market cap as Hive. Of course, it matters if the seller is a bit smart about it and doesn't use a sledge hammer where a picolet would be better.