I just locked a topic where a user was asking about controlling a DJI Phantom2 with an Arduino. The interesting thing is that seemingly (according to the log), when the post was approved, it was about controlling the Iris with an Arduino…
So it seems, that the user edited the post after it was approved.
After talking with Craig, I set an editing limit of 15 minutes for users, which should mostly prevent those things in the future. Please still keep an eye an those kind of tricks! Editing posts in the approval phase also is a not uncommon trick of more sophisticated spammers!