It means we're glad to have you as a relatively new member of the TurboTax Community!
You can learn all about this: Community Ranks, Levels, & Member Icons
You'll see those designations near every community member's name -- helpful to get a sense of how much experience the particular member has.
You can find all of your posts by clicking on the "people" icon next to your initial in the upper-right corner of the screen and then choosing My Profile. You'll be able to review your prior posts and all of the answers to them from there.