Photography Question

I've been wanting to up the quality of my pictures and I've always heard Bad Dragon is the best viewer for photos (or I might be out of touch? lol please let me know if I'm on the wrong path). So I have installed it and spent a little time trying to learn it... and I'm now wondering how people save their images. I noticed BD doesn't appear to have a "snapshot" function. I've always just use gyazo to capture my raw photo but I wonder if that's not getting the full quality.

So what do you great photographers/editors use?

Edit note: yes, I know I slipped and said Bad when I meant Black. I am aware of what Bad Dragon is. perhaps a Freudian slip ;)