Temporarily, I trust. Your input will be missed. Upon what I hope will be your return, try to husband your resources by ignoring trolls.
I have to second that. IMO tortoise is one of the more knowledgeable posters here on FR whose posts on Information Theory were very much appreciated and I can say that as a layman, I learned a lot from him. Of course his posts on other topics such as evolution, firearms, wine, etc. were quite interesting as well.
I hope he heeds your advice and returns to FR, although reading his exchange with a certain poster I can understand his frustration and his decision to leave.