Thread:Collector1/@comment-6025261-20160319000911/@comment-1187034-20160319002122

Go to the user page of a user and go their contributions. Just below the section called "Contributions" there will be a section called "For [user name here]". The second word contained in the parentheses will be "Block". Click that and it will take you to a block menu that gives you the option to block a user for a certain amount of time, block reason, and other options, such as a setting that disable the user you are about to block from editing his/her own talk page.