Answer: It took me 15 minutes to find out that the mod hugolp deleted an ongoing thread and merged it into another one. If he wants to merge ongoing threads at his whim, it would be polite to at least pm the participants of the thread to not leave them confused and wondering what happened to the thread.
Also I posted a second thread asking what happened, and he deleted this thread too, without notice.
Honestly, better moderation practices would be appropiate.