Are you sure the Sun is per poem? It simply says "Poetry," & unlike most magazines doesn't say how many poems or give any guidelines beyond the 7,000 word limit for all works.

I was just about to submit a dozen poems when I realized they could potentially all go for a lump sum of 100 according to the grammar.

It wouldn't be a big deal if they also didn't discourage simultaneous submissions.

Googled this & found your article. Appreciate any insights you have. Thank you!