How about 'Howdy' or 'Hi-diddly-ho neighbourinos!' - These get my stamp of approval lol

As for the weekly posting, I think any concept that can keep you writing consistently is probably a positive, so weekly, or series based things I personally encourage.

I think if you can spin it in a way that is bringing STEM to a wider audience it might work, although I'm not an authority, per se, on curation, that's more of a team effort. Not sure what @eniolw thinks.

I should say this post doesn't set a limitation to what people can write about, it's just trying to cut off some bad habits. Mathematical analyses and graphical representations are totally legitimate alternatives in a STEM community