There's no space between "Terranova" and "Team" in our name to make it more like a category name. That was our official design establishment and that's why terranova_team has no use IMHO.
You won't believe me when I tell you that address "terranovateam.slack.com" is already taken... D: And even terranova-team.slack.com. cbot.slack.com, really? Who is stealing our names :| Alright, at least colobot.slack.com is available...