1. You can start a new server right in the client by clicking a button.
2. Logs are saved server-side and synced across all your clients (phone, PC, etc).
3. You can upload images and videos to be hosted by Discord's servers. Media and links appear inline in the chat log.
4. No strange rituals involving NickServ or ChanServ.
5. Mobile notifications.
True but God help you if you ever lose your discord 2fa seed; you'll have to throw away that identity and start over. [1]
From their FAQ:
Note: If you do not have access to your backup codes, we are unable to remove 2FA and you will have to create a new account. Discord cannot remove 2FA or issue you new backup codes.
*1 https://support.discordapp.com/hc/en-us/articles/11500122107...
The way I got into Discord was some open source project had a link on their GitHub page for collaboration, I clicked that, entered a name and within minutes I was helping out with some code. A cookie kept my temporary account alive.
I don’t remember any trolls or spammers or anything. I noticed there’s a setting to control the amount of filtering for your server. And I think there’s also a captcha the first time a temporary user joins.