I was watching a [video](https://youtu.be/pB-7dTUJUB8?t=201) on YouTube. I think he said:

> 
> Avant de finir, pour ceux qui seraient **chaud de** tester le concept, n’hésitez pas à m’envoyer vos créations sur Twitter et sur Facebook.
> 
> 
> 

Q1: When I use the word "chaud" like this in the sense of "avoir envie de", I always couple it with the preposition "pour" instead of "de". I wonder if both are acceptable?

Q2: On Wiktionnaire, the "chaud" in this specific sense is tagged as *mélioratif*. Does this "chaud" usage come across as more polite than saying, for instance, "pour ceux qui voudraient tester le concept"?