You can earn basic privileges, like voting and posting on walls, using points. (You should read about points before continuing here.)
The amount of points required to perform each action varies according to the section you are using. The table below provides an overview:
You can also skip the 'checked and approved' message that appears on your posts using points. This will cause your posts to become public immediately. You need 25 points to do this in the section you post on. However, on the main section, you need 200 points to skip the prompt when posting an answer on an old question.
If you can't load the image, view the list of requirements using this document.
Note that if you earn an extra privilege on one section, you won't be able to use it on the other sections until you reach the points requirement in those sections as well. (So, you can vote on the main section if you have 30 points there, but that does not mean you will be able to vote on Meta if you have only 20 Meta points.)
To use the chat room, you must use a registered account with a confirmed email. Points independently do not award any privileges in the chat room.
Some privileges are restricted to users who have been promoted, including experts, editors and moderators. Quality contributors receive promotions based upon community and moderator input. Access this thread for an in-depth guide to how the auth team on PokeBase works.
To learn how to gain points, check the answer to the question linked here.