There are plenty of tools already, that more or less offer the same features.
I guess some domainers would pay for software that would spot the domains with the most promising expired traffic, but I think that already exists.
Besides, if you find a good money-making idea, why not keep it to yourself ?
To some extent, I think charging for such services is legitimate but like the online equivalent of selling picks and shovels to gold diggers.
I think a service like freshdrop is among the more expensive ones (less than $100/month I think). So if domainers balk at paying $100/month, that means they are cheap or there isn't that much money in the game. Or you are going to need a large subscriber base to make it worthwhile.
Maybe I would pay the sites to shut down and eliminate all my competition :cheesy:
More seriously I am not sure what can be done that doesn't already exist.
I would maybe pay for certain ccTLD lists, or 'invisible' stuff.
You don't want the software to print money too? Seems like it'd be easier.
It already exists. It's called running a TLD registry.