I think it's taking you away to a login page, logging you in, then bringing you back.
I can see the point if you were going to ask or answer a question, but 99% of the time you just want to see how somebody else didn't get their problem solved by some random Indian guy who people assume works for Microsoft, who think the solution to everything is running "sfc /scannow" which has replaced chkdsk as the command most likely to take a long time, do nothing, and make the question asker go away without a solution to their problem.