Maybe in the forums where you post, but not in mine.
OK, no double post according to Salmon Trout.
I can't speak for ST but in all of the forums I frequent/visit, CH,GPC, the ZBoard, TDWTF, and several others, a double post is just that- posting the
same message twice. In fact on several occassions people saying that two unrelated posts by the same person are a double post resulted in a quick and decisive line of questioning of said individuals parentage.
I also contend that, while I do not know this for sure, I am quite certain that Salmon Trout has been exchanging messages on Message boards and BBS's for a long time and therefore would defer the meaning of terms such as "double-post" to his learned experience.
Besides, Urbandictionary quite agrees with his definition:
A double post is two posts in a row that can be made into one post, but the person decides to post it in two separate posts. The posts have to have a common element though
His two posts have no common element. One was addressing your problem. The other was informing you of Geek-9pm's somewhat curious sense of humour. They were not related.