I was fortunate enough to have the opportunity to co-organize a div3 round Codeforces Round 974 (Div. 3) last week, and whilst my memory is fresh, I'd like to share some thoughts which might be of interest to future setters and users.
The project started as an aspiration 6 months ago, when I contributed to Codeforces Round 946 (Div. 3). It gave me some confidence to think about setting a round, and Robin Hood seemed like a fun theme to weave some legends around. Over the next months, I collected a few ideas and gathered enough courage to approach the div3 coordinator Vladosiya, who was surprisingly 'chill' about my obvious lack of experience and low rating. I enlisted ChairmanFMao and Filikec, and the round became a summer pastime for us.
So, don't be put off by your rating or experience. If you come across nice ideas, discuss them, collect them, you might be the next contributor to a round. Setting the round was quite straightforward with the polygon system, although there is a steep learning curve. The reward is that you could put together a working problem in literally $$$15$$$ minutes.