I just stumbled upon this website and feel really pathetic to see a forced sign up / like button, Its to be noted that you can enforce a like or social sign up but they do not actually brings you good audience.
A like or thumps up comes for a good content, hiding a content and asking for like and share is a very bad strategy, audience are bound to bounce off form those pages.
Any information that is blogged should be available for free. Technically good article will be ranked high, say for example Wikipedia articles, stack overflow answers, WordPress forums, David walsh’s blog. None of them implement any forced Likes or social shares.