I am using the participant plug-in and when I loaded it's table the information was also loaded into the wp_users table.
What is the wp_users table used for? Also, if I need to use it can I add columns to the table?
What is the wp_users table used for? Also, if I need to use it can I add columns to the table?
The wp_users table lists WordPress users for your website. I recommend asking experienced WordPress developers about adding columns to core tables.