Ah! That's likely because you were RT'ed from the Shapeways account . Also, @sethfeingersh on twitter.
Yes, the one at 12000+ views has been re-tweeted by @Shapeways (thank you for that @Shapeways, whoever you are ), this explains how it went from 5000+ (before being re-tweeted) to 12000+ but what I am wondering is how my tweets went from 100+ or 200+ (usual number of view for me) to 5000+... But i am not complaining, obviously...
I'm @DiametricArts on Twitter. I have 96 followers right now...looking forward to hitting a hundred (wink, wink). ;-)
I'm @philnolan3d over 2300 followers and growing. Pretty much the same name everywhere else, including philnolan3d.com