It seems that the link http://mathoverflow.tqft.net/ (which, according to this announcement, serves as an archive of the old tea, i.e. the previous incarnation of MathOverflow Meta) no longer works.

It does not seem to be just my local problem - I have tried to check using Geopeeker and Down for Everyone or Just Me.

While the site is down, the content might be accessible from the html dump posted by Scott Morrison and probably some of the content using the "usual methods" such as Google Cache or Wayback Machine.