Reviewers and writers actually do get a stipend, but it's a token amount like 200 bucks a year. This industry is the most ass backward incentive structure we could possibly create, the only reason writers would provide articles to a journal is literally for the clout.
I've never gotten a stipend or heard of someone getting a stipend for publishing or reviewing manuscripts. The only thing I've been offered is access to the journal.
Depends on the journal I guess, my wife worked at multiple publishers and there's normally an insultingly small stipend for the editorial board members and writers
Publishing and winning grants are the lifeblood of most academic careers
To fund your research, you have to win grants - and to win grants, you have to have a proven history of publishing research and winning grants! Bonus points if you provide unpaid labor for granting and publishing agencies by reviewing applications and submissions.