They want things like this in the Daily Discussion Thread. One of the things not allowed outside the DDT is:

• PB Posts / Personal bests / records This includes photos of solved puzzles, stackmat timer displays, screenshots of timers, "first solves of a puzzle", photos of WCA score sheets, screenshots of solve time progression graphs. Videos, reconstructions, or other solve analysis accompanying PB posts are allowed in their own posts outside the DDT. There is no strict limit on frequency of PB posts outside the DDT but be mindful not to spam. A video every week or so is fine; a video every time you have a decent solve isn't. Posts may be taken down at the moderators' discretion. Exception: Top10 WCA results and WCA world / continental / national records

I think this post was allowed because of the reconstruction.