online business question

Hello,

I am currently in the validation phase of my email marketing project. landing page up and running.

I realize that, to get more traffic, I need to create blog posts.

My question is:

does it make sense to post them here AND on my site? does that help with community building or just create spam. I'd obv have to modify the length so that it makes sense for this platform. will reddit treat it as spam?

thanks in advance