
There are usually one of two reasons for this:
a) Creating an account will allow you to return to the site with your data saved (e.g. if you are doing
tutorials, or if you are shopping)
b) no particular reason noticable.
In either case, an ‘account’ has nothing to do with money, only with identification.
In case a) Enter your email address and a NEW PASSWORD, DO NOT USE THE PASSWORD FROM YOUR EMAIL ADDRESS! The email address identifies you (like your name) and the password is the key to open the door. You would not have one key that opens all doors you are likely to come across 😉—so do not use one password to allow access to every website.
In case b)
The reason is most likely to send you emails (that you might not want) or to collect data about you. If
you really want to continue on the site, and it won’t let you go further until you entered an email address, I would suggest you use a ‘dummy email address’, not your normal one. The best way to do this, is to create an email address with a free service (like gmail, hotmail or similar) and use that email address for when you don’t want to have any communications from the site. You can then just ignore any email going to that address, and it should keep your proper inbox a bit cleaner.
And yes, it is a pain to have so many ‘accounts’ and having to remember all those passwords. Consider
using a password manager, which is a small program that keeps track of all your passwords (encrypted,
so that only you can access them) and even enters them automatically into the correct websites. Some of them even allow you to create one-off so-called aliases that work similar to the ‘dummy email’, but that is a subject for another time