<p>Is it realistic or thought neccesary to develop a plugin/feature for this site, to automatically add a small info-box about a thingiverse link? An example of this is Apple's 3D touch technology. In theory, the plugin could recogize thingiverse links in questions and answers, replace the link with an image and the author/name of the project.</p>

<p>I'm also volunteering myself to help with this if there's interest. (Experience with Thingiverse API)</p>

Typically, it's a better idea to wait before you try to get this kind of thing integrated.
Enthusiasm is great in a private beta, but for the early stages, direct that enthusiasm towards the Q&A. That's what'll get this site on its feet and into a successful public beta.
When the site's more stable and running nicely, then if there's a need (or want) for a plugin like this then the discussion about it can be had.
(On a tangent - if such a plugin is going to happen, it may well be down to SE's developers to get it done, which might make getting assistance from the people on this site difficult.)