hello guys i am new here and i need to know few things
1.Do free sites also need key ?
2.if i generate a key will it be valid forever ?
3.is it important to signup under the referral link for everyone ? or we can generate a key for our any account
4.will i get banned if i use plugin to click ads ?
5.do every plugin is with auto capcha ?

thanks in advance to whom ever answer me