Not that people should be shamed for their personal interests! Everyone should imbue some of their personal style in their work, that's how we generate creativity and so forth.

That being said, I think the problem is when personal style overlaps too much in what needs more professional separation and distancing. It seems like that can be a recipe for too much ego that creates rifts.

There is a risk that we start turning a serious endeavor into a personal project / hobby, or worse just treating it as a joke; leading to situations like:

  Up until recently, I was part of two private online discussion spaces where a bunch of Rust people hung out.