I'd have to say @lyndsaybowes! She brought me to Steemit, she has such a big heart and cares so much about EVERYONE, she inspires people to better themselves and their communities, she always responds to every comment, and she's hilarious to boot. She can brighten probably anyone's day. She's been a great mentor and friend to me and so many others. Check out #ophumanangels and #walkwithme, both created by her. Absolutely making Steemit, and the world, a better place.