This question already has an answer here:
Is there a software that I can use to automatically create 0-value transactions (spam) using my own node? I have found one that uses the browser, but that one is very slow and is currently not working either (not updated?). Edit: The question is not IF/WHY spamming the network is good. I assume spamming from my own node is good for the network. The Q is HOW to do it.