It’s easy to do with opencart:http://demo.opencart.com/index.php?route=product/product&product_id=42
or just let to print all comments on 1 page (user can search comments by ctrl+f)
Take a look at IP.Board, they have own DRM + some files are encoded with Zend Guard, actually 99% of hosting companies have installed Zend Optimizer module so I thing that Envato should have own DRM too.
They usually ask
I would buy your theme if you tell me how to …I have noticed another trend, people buy theme only if they need support: http://imm.io/pgVV
Anyway, in my country if some game, movie or software is available on some sharing site then lawyers ask sharing site for IP logs and they send a bill (about 1000 euro) to each person who downloaded pirated good. If you won’t pay then you will be issued.
Are you sure you buy this theme?
Probably he bought it from some “reseller” and ask real author for support
@charly38000 could you show us a paypal/moneybookers receipt?
I have 1 theme with 105 comments and about 40 comments are from 1 buyer He’s asking me for small modifications over and over. Today I opened TF dashboard and voila I see another question from this person, I bet tomorrow will be another question
There should be some limit of comments per each buyer.