@Teeworlds - FeaRZ the masterserver of teeworlds gets kimda ddossed, so it doesn't show the servers while they are online. You can join with the server adress tho.
you need to upload your map first in the forum. https://qshar.com/ --> Forum --> Creating New Map. Then qshar or a tester will upload the map on the Test server.(edited)
I'd say it is a taking best practice. We already thought about moving testing section to Discord, but didn't decide to do it. I really like the way jao did it. So yeah, we are trying to stay modern and implement best practice.