Ayuwage doesn't say anywhere: you will get at least XX ads per day. Advertisers come and go. Sometime there are periods with more advertisers than usual, sometime there are periods with less advertisers than usual
you are also confusing because you say
Ayuwage, Innocurrent or minutestaff is now losing advertisers.
but it look wrong because you say
today I only earned $0.8 to $1 by doing same thing.
so you have the same activity as usual
I use this site and nothing changed for me.