To be fair, I predicted that a bit over 50% of ETN's hashrate would go to DERO once it forked, and around 20% would go to BCN. Using the same 3 hour average of the stats from CryptUnit (
https://www.cryptunit.com/?order=price3h) it looks like DERO is running at just over 1000MH/s, so around 500MH/s added; BCN is at 325MH/s, so it nearly doubled - 155MH/s added; KRB only increased to 89MH/s; AEON and BSM are essentially the same; BKC also doubled - now at 4.7MH/s.
This doesn't come anywhere close to 1900MH/s, so it seems there's a lot of hashrate that is missing. I guess some ASIC owners have switched them off while others might have failed to notice that ETN forked (CryptUnit is reporting some 2973MH/s on the ETN network, but it was reporting a similar number this morning and the fork had already gone through).
Basically, any coin a CN ASIC is mining right now will need to moon hard to pay off these boat anchors / door stoppers. That may very well happen with DERO, but both ETN and BCN seem to have relatively poor prospects to me.
Actually, from my understanding, the hash-rate is determined using difficulty, and time to find a a block. So its not directly taken from whatever is connected and what they are reporting.
So it will take a day or two for the difficulty to adjust and then hash-rate will be known.