Well, nothing wrong with wanting to practice your writing! AS LONG AS the expectations you may have tied to the outcome of your writing doesn't extend beyond simply wanting to undertake a daily (or weekly, or whatever) exercise in writing. That, in and of itself, is a goal. I had a blog for many years that was my "daily brain dump," and that was its sole purpose. But it had that deliberate purpose...
Perhaps my post was also a gentle nudge of criticism at those who can't get beyond they notion that they are "creating content because we get paid." That's a pretty poor reason to do anything, and the vast majority of us around here don't get "paid" enough to make it a valid reason. Sure, it was a "reason" for me at a time when my blog here earned $500+ a month and I could justify it as a substitute for a part time job, but that's not now.
And so, I am increasingly going to use this as a vehicle to promote my art; my wife's non-profit organization and a few other things... while trying to keep it interesting. And I am planning to write more stuff that will have a wide distribution...
Hmm, that is a good point. I wonder how many of us arrived here with a vague goal like wanting to practice, and have done so, but now need to reevaluate that goal. I need to. It is a good gentle nudge.
It sounds like you know just what you want to do. Social media certainly is all about promotion. Even facebook, which seems often to be promoting an image of how fabulous a person's life is, or promoting a body if there is nothing but selfies. I guess that is the ultimate criteria for goal making here: what am I promoting? In my case, my writing. That might just be good enough for now.