I picked up a freelance writing gig.
I hate it. I am very close to going 'Look, I've already put over 10 hours into this. It's not worth $90 anymore' to the guy that hired me. Whoever he has as his 'editor' for the writers is a fucking idiot.
Edit me for grammar. Edit me for phrasing. Edit me for legibility. But if you can't follow the bouncing ball of the topic and concepts like 'According to studies [link]....' have you whining at me 'We can't make unfounded claims!' (lady it's not unfounded the link to the fucking study is right there I'm not going to rehash the entire medical study in copy that's supposed to be 'lighthearted' and 'easily consumed' jfc) maybe you need a different line of work.
If you're editing for content as well as grammar, you need to do the research on the topic, too.