Clash Recruiter uses the new Slash Commands technology in Discord to power up the commands! This makes your lives as well as the developers' lives easier!
We had to switch because Slash Commands are a lot more easier for users to use the commands! Discord is also trying to make everyone switch to Slash Commands. This is the right decision for the long run.
Check out the below link by Discord to know about it and you'll get a better idea on how to use it well!