Something is weird with the comments to this blog. Now I receive spam (e.g. to the previous entry) which I cannot delete (*). And the comment counters are sometimes messed up too.
So I decided to disable comments (again) and recommend that you do not click on links in comments which consist mostly of strange characters.
(*) Why send spam to a blog which is mostly inactive ?!
update: Meanwhile, it seems that the delete finally worked and I am turning comments back on.