“You won’t get rich here, but you get a byline and clips. Good opportunity for writer just starting out.”
Who says? First, modest means low (and probably slow). Writers just starting out are worthy of their hire. You, Mr. Employer, still get a story or blog post you consider good enough to use, so pay! This kind of ad is like saying, “Let's all pitch in and make ME money, sound good?” And those clips—often phrased as “exposure”—who is going to go repeatedly to a website full of content worthy of only “modest” payment? And if they do, will they fall over when they hear what market rate is?