What about ☆☆☆☆☆ stars option like play store when we vote code?

Answer 1

a code receive more like if:
- it is on fist page on "most popular codes"
- much older is more likes
- if it is a "code of the day "
- how much time as code of the day or on trending

Answer 2

it could be more visibility for the best code so it is much easy to learn from the best.