premium is for users that would like to donate some money to the creator of nypsi. in return, you receive benefits that give extra usability, faster commands and most importantly... bigger penises with /pp
most importantly, premium helps nypsi keep running. (:
the easiest way to get premium membership is by subscribing on either patreon or ko-fi. you can also use your discord nitro subscription to boost the server, which will gain you the silver tier.
there are other payment methods, such as direct payment via crypto. if you're interested, contact max#0777.