Hi Michael,
Later today I plan to post a brief overview of how the sign up process for membership options will work but here it is in a nutshell: As you are already registered with the site (as one needs to be to comment on a front page post, as you have done here), the process will be seamless. The first time that you log in on or after April 3rd, you will be re-directed to a page in which you will have the option to select your membership level (Silver or Gold) as well as the term (monthly, quarterly or semi-annual). Your username, passwords, notification settings, etc.. will remain the same.
After selecting your membership level & term, you will see field to paste the 50%OFF promo code & the adjusted total for the term that you have selected will be displayed. At that point, you can select you payment method (nearly all major credit cards, from anywhere in the world) & that’s it. Note: Credit card transactions are processed directly by Stripe, a leading online payment processor, via a secure pop-up window. None of your credit card information passes through, nor is stored or accessible on Right Side Of The Chart.
Additional info on the sign up process will follow but again, I think you will find it to be a very streamlined & seamless process.

Thanks.

Michael