They pay mod authors (like me!) based on unique user downloads. Requiring an account makes it harder to fraudulently inflate numbers, which also benefits the whole community as broadly speaking the most downloaded/endorsed mods are also the best. Bot farming would ruin the site but not paying the most dedicated mod authors would also ruin the site.
Pick something you already have and use often, like a phone charger or an office chair or a pair of shoes, and ask for a higher quality version of the same thing. Something that will last longer or be more comfortable.
They pay mod authors (like me!) based on unique user downloads. Requiring an account makes it harder to fraudulently inflate numbers, which also benefits the whole community as broadly speaking the most downloaded/endorsed mods are also the best. Bot farming would ruin the site but not paying the most dedicated mod authors would also ruin the site.