(obviously not the ghash worker)
+1
I thought they already did disappear from the list automatically, but that doesn't seem to be the case. My .ghash worker did disappear once in the past, when I hadn't had any GHS for a few days. But now another temporary worker is still listed, even though it only mined for a short while 3-4 days ago.
BTW, can anyone explain the worker grouping option on account preferences? I guess the email and phone number are for grouped alerts, but what about the read-only password? The grouped alerts would be useful, since I'm now getting a flood of text messages and emails on every downtime.