Viewing Content: Viewing the content which is already on the site can be done without registration. There are Search features, along with Related Article features, so please use them to look around.
Credibility: At current state, the information on mewfacts has no proof of accuracy. We are currently working on a peer-evaluation system to improve the credibility. These futures will be added in the very near future.
Rating and Commenting: "Staring" the facts if you like them or not can be done without an user account, but you must be logged in to add a comment, or reply to another comment.
Adding mews: You need to log in to post any facts. The registration process is very simple and self-explanatory, and you can register using a Facebook account as well. Once logged in, you will find a "AddMew" button to your right. From there you are able to add any fact you'd like.
mewsocial: mewsocial is the SNS feature on mewfacts.com. All registered users receive their own profile to be able to follow, comment, converse, with other users.