I fail to see why my previous question was closed. I merely asked whether or not there were any free/open source network (IDMS-type) databases, with the implication that, if there were, an indication of what they were would be made.
You say "As it currently stands, this question is not a good fit for our Q&A format". Why not, it's a straight question?
"We expect answers to be supported by facts, references, or specific expertise, but this question will likely solicit debate, arguments, polling, or extended discussion.". A simple reply would not "solicit debate, arguments, polling, or extended discussion." - it's a straight factual answer.