the million dollar question: does it really make sense to write more than a couple of posts a day?

Yes, absolutely, if they have something to say.

It should never be overlooked that we all have a daily voting power

And herein lies the rub: If you have something to say, there is no reason to spread it over multiple posts. So a daily series would preferrable. Simple as that. For the chatty types there is Facebook and Twitter. This is not the place for it, but if they want, I have no objection, either. Freedom! Just don't expect me to vote every five minutes.

I like to think I'm delivering quality art posts. I'm lucky to have a few bigger fish that bring my rewards up. If I would overly tax their mana like crazy, they'd be turned off and gone. So for me it works out better to post only every few days. This works out fine, as painting takes time and costs money. Win-win.

Be safe, Carlo, and all the best to you.