Been thinking about this today and what I think will happen so i'll share my thoughts.
Well we will find out if these miners have been mining Monero the last few months, as soon as Monero does the hard fork there will be a day or two until miners and pools swap over and after that settles down if the network hashrate is VERY noticeably lower than before that means these miners were mining Monero in the months up till the fork.
But if its the same or more as before then my guess is that they were not, but I really believe they have been mining Monero for months and it was not just bots responsible for the high network hash rate.
Either way all the other coins based on cryptonight will get mined more heavily but there are so many no single coin will get hammered too bad.
These asic miners will not affect Monero much at all except hopefully they were mining Monero and after the fork they can't and maybe it will be more profitable to mine Monero again.
IF they started rolling out back in Nov-Dec the network hash rate was about 1/4 the current hashrate, so If I had one today and mined at 20k at 60w my daily profit at todays Monero price would be about $20.00. Back in Dec the profit would be i'm guessing about 5 to 6 times that with the higher price of Monero and the lower difficulty so lets say $100.00- $120.00 per day per miner and the estimates I have heard about the price of the miners back then was about $7,000 each and would make r.o.i. in about three months so from end of November until now thats almost three months.
So I am guessing, yea i'm doing alot of that LOL, that those miners have been mining for a few months they have just made r.o.i. or very close to doing it and when you include the current sale price Baikal will make a nice profit.
The one thing that I thinks almost proves the miners have been mining for months is the immediate availability just a few weeks before the Monero fork.
Usually Baikal announces miners months before they are available and they always sale out immediately for the first batch, then the second and so on.
This time its VERY different, no announcement ahead of time to stir up interest, and immediately available.....humm almost like they have a warehouse or two full of them....... and I am pretty sure that they were not just sitting in boxes but being "burned-in" for the last few months.
I am not getting too worked up about this at all, it will not affect Monero badly at all nor affect the clones as much everyone thinks either because there will not be a huge jump in hashrate because the miners have already been hashing for months and there are plenty of coins to spread all the hash around.
So now i'm back to mining Monero and getting ready for the Fork.
And no i'm not selling all my other cryptonight coins either.
This will be a big deal until everyone realizes that its not. LOL
EDIT: Also I expect that the first adopters will be yelling about being sold used miners, it's not like that has never happend before. LOL