Create another account here with an alter ego and practice writing poems in that alter ego's voice. You need to think about that person's personality, traits, attitudes, etc., before you start. Benefits: https://self-publishingschool.com/benefits-of-using-a-pen-name/
Are you encouraging us to open fictitious accounts? Will they be temporary? Will we be required to disclose our true identities at some point? I'm intrigued by this, but I want to make sure I'm not violating forum rules. I have done this before at another website (which no longer exists) and found it quite liberating. I was able to write things I wouldn't normally post under my own name.
It's a good exercise and can be liberating. As we all know, many famous authors have written under pen names. https://en.wikipedia.org/wiki/Pen_name Not unless you make them temporary. Members here can delete their content and their accounts. No. You're not. That's often why authors adopt pen names. So long as your nom de plume remains within forum rules, you're fine.