@Fionavar @SChin, and whoever else it may concern. Yeah, no, it is reproducable, but it behaves so seemingly random that it is hard to figure out what the actual cause could be. Certain sets of words in quotations, irrespective of which quotation marks are used (both regular quotation marks and apostrophes break it), cause the post function to go on the fritz, but even then not always, it also has something to do with the words following a quotation. See, for instance, thanks