One of the reasons for using timebucks is that at least some of the links used do not have malware.
Some clients are giving youtube work and were using the t.co url shortener for the links which had to be used.
From friday onwards, most of the links have been changed to is.gd
When the use clicks the link, the page does not resolve, it gives the error the connection is reset.
So Timebucks users cannot open the page and do the task which they were doing daily.