(This particular guy had a cashflowing rental owned free and clear) So while he wasn't desperate...

Starting there makes you look desperate and could be problematic if they have a lawyer friend.Beef up your rental agreement for the future so that you have ways to enforce the rules and get undesirables out.  

Mom and pop desperately try to collect 2,3,4 months back rent and have no clue what they are doing.

I offer 70,000 or less and since you're desperate you accept.Incredibly simplified and unlikely to ever happen that straightforward, but that's the general gist as far as I understand it

They're desperate to get it out of their hands.

(I'm not saying wholesalers without a license are bad, but many are simply hustlers, scavenging desperately to pay the bills, which can lead to, 'unethical' behavior).I started doing research from those 'investors with licenses' to discover the pros and the cons, and if it is worth it, and would it fit in with my current lifestyle to get a license.

Deceptive advertising has come under fire in most industries in recent years.In wholesaling it is compounded by the fact that desperate sellers are usually emotionally vulnerable.

Looks like you're desperate not to fall into that trap!

I will then engage in a constructive dialogue with my attackers on the evils of capitalism and how capitalism drove them to their current state of desperation.

Are you desperate to rent or simply considering the first applicant.