[Klover]

That depends on the server. You can set it to public, or a mix between the two. Or even a public channel, a registered channel, and a channel for people with 2FA.

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.