Their publication is also on Medium. The upside (as it was described to me) was that it would then be exposed to their 500k followers, the downside being that

Their publication is also on Medium. The upside (as it was described to me) was that it would then be exposed to their 500k followers, the downside being that it would no longer be in my own publication and thus on my own domain. The only reason I was even considering it was that I don't know how Medium promotes articles internally, so I figured the boost of the extra followers could help. But I figured maybe Medium doesn't even work that way? Thanks for the input - I was kind of leaning towards staying put anyway, and this reinforces that it's the right call.