Yes, there are apparently a number of sites/apps that will give your (fake) accounts 5 lures when you sign into them. I was told about them when I met players through discord last summer. They basically grant someone unlimited lures at a moment's notice. I don't know any further details since I've never felt the need to use lures--all these folks who use these services pick up and use them for me whenever lures are called for.
GamePress
About Lure Modules
Everytime I see a place with a Lure Module, I can see usernames that are really random and I never saw before nor do I see them again. Do people create other accounts to get free lure modules?