Alfons informed me, that this Blog threw some error messages on posting comments. This is now resolved (I hope at least).
This was caused by a plugin to stop spam (or by a combination of some plugins). Actually I don't have a problem with comment spam as I use Captcha (I know that this is a bit inconvenient but very effective). Unfortunately some blokes spam the trackbacks currently massively. They don't get through as I have to accept every one of them, but my list of trackbacks grows with spam and grows on. So I installed some plugins. NP_Blacklist, I use a more recent Japanese version, is quite effective, even though the blacklist itself is not updated any more. But it checks some online ressources as well.
But some spam still is not blocked and is added to the trackback table waiting for approval. So I just changed NP_Trackback not to add any trackback item to the tables which is marked as spam. So if you try to ping this blog and the trackback isn't added (it may take some time to be approved ;-), contact me. Now any trackback ping which is recognized as spam (and not blocked anyway) is just dropped without noticing me…
