[Fomite]

Three thoughts on this:

1. Keep in mind for most projects and papers, not very many people are ever going to use the source code. For most projects, there's almost no chance that you're going to get a lively, multiple contributor project going. Odds are it's just going to be on your shoulders.

2. If you're going to stay in academia, there's no level of bragging rights to an awesome project, and it won't particularly help your job prospects - indeed from an opportunity cost perspective, most of the time it will hurt them. Once the code is good enough for a paper to be written, the incentive to do more work on the code vanishes.

3. Science blogging is actually a pretty active field. But talking about the software aspects of code don't get talked about as much because its just a tool. There are some blogs on software for science drifting around out there though.