There is no clear reason why the price is declining. It is probably because the distribution rules have been changed for the upcoming distribution. I think the strenght of Bitcoin is also a reason why many sold their Byteballs to invest into Bitcoin. I believe that the price will found its low soon. There are still three weeks to go for the next distribution. Usually two weeks before the price starts to recover.
so why they are dumping, i remember that in the last airdrop there was a pup to 0.26 btc, but now it's the same as bitcoin cash, the value is bad, there are more claiming perhaps?
The dumping is expected since every airdrop is free. Only daytraders and viciously faithful coin holders are trading this coin. There is no emotional or financial investment for many (hell, it's free). The thinking goes like this: sellers will re-buy cheaper once bitcoin rally goes to sideways.
The real trend will come after the freebies. Smart money will be looking out for the dumps. Forget the price, just buy with disposable money.