I also read citrus seeds take much longer to germinate if they have been previously dried out (5 weeks) and that the seeds are also slower to germinate, which makes the sprouts more vulnerable to mold. There was a comment by someone else that citrus seeds are only good for about 2 or 3 weeks if not refrigerated, but sometimes they can last up to 3 months.
I doubt most online sellers are aware of all this. Does anyone else have any other comments about this?