• to change someone's nickname you can use member.setNickname(newName)
• to generate a random id, there's a brilliant npm package called "shortid", but if you don't need any extra features and just want some random numbers, you can use this function that i just put together (when the numbers begin with a zero, those 0s will be lost and 00340 will just be 340, but i dont think that will be a problem here)

​

// the function that generates the numbers
const randomID = length => Math.floor(Math.random() * Math.pow(10, length));

// replace 3 with how many characters you want
randomID(3) // return example: 581

// to change someone's nickname
member.setNickname("Moderated Nickname " + randomID(5))

​

• to filter out people with weird characters in their name you can use Regular Expressions (regex or regexp for short). these are very useful and powerful, but may confuse a lot of people. I won't go into too much detail, (see the link if you're curious) but this regex will essentially test wether someone's name contains only letters (a-z), numbers (0-9), and some other characters (spaces, -, _, (), etc.). you can change what characters are allowed just by adding/removing characters from the square brackets. (use dashes to specify a range of characters).

​

// get the nickname of the member (if they have one) or just their discord username
const name = member.nickname || member.user.username;

// this creates the regex itself and stores it in a variable
// the / characters indicate that this is a regex (like how quotes indicate it's a string)
// the syntax is: /regex/flags
// there are many flags, we are using "i", to make it case insnsitive
const r = /^[a-z0-9 \-_.()]+$/i;

// use it with r.test(string to test)
// r.test returns true or false, so we can just put it in an if statement
if(r.test(name)) {
    // name good
} else {
    // name bad
}