Its becoming more common for journals to have preprint repository sections...i.e. even nature are doing it for neuroscience, and i noticed some respectable scientists are just using this channel to publish stuff at preprint then get colleagues to review, and then not bothering to publish if that paper is only a side issue project for them to make a point. i.e. They are only bothering to go through all the hassle of trying to get journal published when they really have to and using preprints as quick way to develop concepts and pass them round. And this is people near the top of the hierarchy. (no dont ask me for names please) As an example i was at a high level neuroscience conference recently..cold spring harbour and some top level guys were just saying the journal system puts them through so much Bull%%% and is slowing them down. Ok i dont want to get into the rights and wrongs of this . That could be a debate in itself and perhaps this is because the journals are a bit overloaded for various reasons. What this means is there are papers at preprint stage i need to cite myself, and was wondering if this has caused any of you problems ?i.e. has a journal you submitted to refused to publish a reference to a preprint ?