Ah really, no more PPL? They always was "suggesting to stop sending more signups" to a few not converting guys, even in 2012, I know because some of these then signed up to other programs including mine - and in general their traffic it was indeed not converting (mostly, 15 year olds fished from chatroulette/omegle via bots - you guess 15 year olds do not buy, but they all signup, at least to troll the girls).
Not everyone used the ppl offer, at least here in GFY I heard people advising revshare with chaturbate since the start. But I suspect ppl it was the most popular method in 2011 and 2012, whatever people wrote in GFY (that's GFY, not the reality).
For PPL other cam programs paid more than chaturbate anyway since some time, even if the comparison is not easy, as no email needed in cb. But I think $3+ with email is more than $1 without mail. At some point there was freecamstars paid some $6 for US but also $2 for mexico and $1 for TURKISH free signups and it was so good until it lasted, first (and last) time I could cash turkish traffic so nicely.
It is quite normal that you should change where you send your traffic time to time depending on offers.. it would be too easy you setup all with an affiliate and keep it there forever and you're done
In general when new program are launched, some time they offer very high PPL, that's worth to use (see turkish ppl), until they fail. They fail exactly because paying too much, but affiliate who get paid made big deal.