Maverick Status means you invested above average in Splinterlands packs. We reward that with access to a Discord channel only Mavericks can enter and a special role in Discord, that gives you the purple color.
Once you bought 1000 packs in the shop (so not via 3rd party sites or P2P) you are eligible to be come a Maverick in Discord. This will not go automatically. You will still need to register the role in Discord channel registration with the $register <hive name> command. Then you will get a message to make a small Hive transfer to sm-voter with a code from Discord to confirm your identity.
Be aware that only packs that you bought in the shop (not from a 3rd party) on 1 account count towards these 1000 required packs. In Discord channel sm-voters_hut you can check your current amount of packs with $packs <hive name>.
Registering your Splinterlands name (=Hive name) in the Splinterlands Discord will give you the following benefits:
-The different color and the "registered" role the will make you stand out in Discord chat.
-Other players are able to reverse a Hive name to a Discord name (and visa versa).
-If you register and bought 1000 packs on that account, you will be able to enter the Mavericks House channel on Discord.
-Registering will allow you to enter the #buy-sell channel.
For more details see: How to get started on Discord and how to register your Splinterlands Account on the Discord Server? And for the Discord roles see: Discord Role List