Hey fellas. Noob question but gonna ask anyways as I don't wanna risk it. What is this representative address in my wallet, and why is it there? Would appreciate any help on it. Thanks

Watch this video for better understanding
https://www.youtube.com/watch?v=LZ8TZFfYDcY Instructions on how to change in the wallet are actual for the 2018 year, so now if you use different wallet you need manually find this option in your wallet.
For now, the best website where are collected statistic about representatives
https://nanocharts.info/