The quality of your content is so much better than the majority of people here.

I'm certain you'd see more consistent support for your work if you start to stake your rewards.

Give it a go :)

Do you think staking around 10,000 Hive power/Leo will provide handsome curation rewards? Or do you suggest more?

In terms of numbers, it really doesn't matter.

Just do whatever you're comfortable with.

We're all here to make money, so nobody is going to complain if you're selling some

Just don't dump them all if you are committed to earning on the platform :)