I still watch on occasion and about three years back I bought some tokens to tip the girls but, as I thought it would, it did little for me so now I don't.
As for the money they make, I was watching a girl the other day who gathered 43000 tokens for a days work. I did some investigation and this is what I manged to find out. She had 11000 viewers. 23 had tokens to their names. This figure varies as the day progresses but is gives you an idea of the ratio of paying watchers to free loaders. For $10 you can get 100 tokens. This varies depending on the size of your purchase but it also gives you an idea. So she generated $ 4 300. Lets say the performer gets 50% of that( I recall someone mentioning it was 70/30 in favour of the performer but I am not sure), that is $2 150 and with the exchange rate of R13/$1 that gives about R 28 (R3 500/hr for an 8 hr. day) Not too bad for a days work!
There are obviously those that don't generate those kinds of numbers and I just happened to come across this lass so I suspect there could be others earning more.
Just some food for thought!