Earlier quoted context omitted.
Disclaimers: I live in another country, and I research in digital forensics -- that has quite an open community. In my situation, I've never reached anywhere near that point. All my works are available for donwload as PDFs, and even if they weren't, my research group keeps a repository where we can re-download/point/email anyone who asks for them. We haven't published in IEEE journals (yet), but as of our countrys la…
As far as I can tell, it comes down to two things: a) Authors need to be published in certain journals to have their work read by their peers, and gain credibility. b) Academic journals (Elsevier, etc.) require you to hand over the rights to the paper to them.
b) As I understand, in my country it's impossible for an author to loose rights over his own work. However, I'm not a lawyer and can't give more specific details.