This code checks which users own multiple servers which are causing inorganic growth issue.

Discord Inorganic Growth Checker.js

const Discord = require('discord.js');

const config = {
    token: ``, // your discord bot token, get it from https://discordapp.com/developers/applications/me
    leaveIfMoreThen5: false, // would you like to leave guilds if same owner owns more then 5 of them?
};

const client = new Discord.Client({
    intents: Discord.GatewayIntentBits.Guilds,
});

/* Output format: 
    {
        ownerID: [guilds with that owner],
    }
*/

client.on("ready", () => {
    let duplicatesList = checkForDuplicates(client.guilds.cache);

    if (Object.keys(duplicatesList).length > 0) console.log(duplicatesList);
    if (config.leaveIfMoreThen5) leaveGuilds(duplicatesList);
    
    client.destroy();
    
    function leaveGuilds(duplicatesList) {
        Object.entries(duplicatesList).forEach(([ownerID, guilds]) => {
            if (guilds.length > 4) {
                for (let i = 5; i <= guilds.length; i++) {
                    guilds[i].leave();
                    console.log(`\nLeft '${guilds[i]}' because same owner owns more then 5 guilds.`);
                };
            };
        });
    };

    function checkForDuplicates (arrayOfObjects) {
        let duplicates = {}; arrayOfObjects.forEach(object => {
            if (duplicates[object.ownerId]) duplicates[object.ownerId].push(object?.id);
            else duplicates[object.ownerId] = [object?.id];
        });
    
        return Object.keys(duplicates).filter((key) => (duplicates[key].length > 1)).map((key) => { 
            return { ownerId: key, ids: duplicates[key] }
        }).reduce((acc, curr) => {
            acc[curr.ownerId] = curr.ids; return acc;
        }, {});
    };
});

client.login(config.token);