Youre logic as usual, is flawed. You are entering into a dialogue with people who seek dialogue. You are therefore encouraging the activity.
I'm not entering into dialogue with them. I'm supplying them with information which they think will be of benefit to them whereas the opposite applies. The objective is to waste their time.
If you also conclude that your actions are likely to result in capture, you credit yourdelf with more power than you ought.
Without going into detail, as this is a public forum, I can tell you (you may dispute this of course) that as part of a small consortium of people doing the same thing, we have had some successes in getting 419 and similar scammers apprehended and imprisoned in several countries, in particular in the Netherlands where the Marechaussee have been extremely receptive and cooperative in respect of reports. I do not claim that we are talking big numbers, but one criminal behind bars is better than none.
To be honest, a more productive use of your time would be to spend the time reporting the spammer to (a) the people hosting the account sending the spam (b) the people hosting the account receiving replies (c) the people hosting the phishing sites.
Spending time reporting, and actively following up on said reports would be a much better use of your time, and much better for the good of the internet than pointlessly filling in forms with false data.
Theoretically yes, but in practice, sadly it's a waste of time.