I agree with you, Javier. It's really disrespectful the behavior of many potential clients. We just had a potential customer and worked hard to create a proposal and create a multi-agency solution for them. They didn't even have the decency to respond to many phone calls or emails I had with simply questions in the proposal creation process. Then, after I sent them the proposal they didn't respond to another round of emails or phone calls.
Quite a lesson for me. I need to feel organizations out more before even talking with them.