+1000x to what Carl said. For anyone that doesn’t understand why this is bad, ask me or Carl, both of us will be more than happy to explain to why you should never do this.
Please, please stop using this. I can give you dozens of examples of why this is terrible practice.
Providing extra features to users is a great way to help encourage users who have pirated the software to purchase a license, but I would never completely restrict use of the system without a license.
I use and love Ticksy. I also use bbPress for managing a public support forum.
aMember 3 stored in plain text, but it was fixed in aMember 4.
I use to work full time on Code Canyon but have slowly moved away from it. If I wanted to, however, I could easily go back to full time at any point.
I agree with the above. Also, from my experience, aMember is a terrible piece of software.
I wrote an advanced search short code: http://pippinsplugins.com/advanced-search-shortcode/
Do nothing. Fighting piracy is a waste of time. It is must more in your interest to spend your time actively developing your skills.