I knew I would get a useful answer from you :-) Thank you for that.

Representatives shouldn't only limit themselves

That's right. It would be boring if everyone just did the same thing. As different as the users are, so should the SRs be.
As an SR, I wouldn't see myself in the role of organising competitions either. Regarding competitions, I'm so uncreative...

enlighten us on at least blockchain mechanism in layman's words.

A very good suggestion :-)
We'll see...