They are just testing how low they can go until users quit working. The pay already is very low, even when they offer more points.
It's true, for the same work they offer less and less with time, so you work for less that a dollar per hour.
Apparently, some are still happy to do the job, so why not?
I finally had time to complete my 200 points batch, but it hasn't been paid yet, and it's been more than 8 hours.
If my points are already in the coinworker's DB, how come it takes so long to send the payment to Bitcoin network?
coinworker FAQ says something about network conditions "not being perfect" can delay payments but that sounds like total BS to me.
It's your own web site, you already got money, what's the problem with sending payments from your own website through your own Bitcoin client?