Eh, there's a logic to it, I think. If you intend people to only nominate the people they know personally (because otherwise they are relaying their impression of a curated media image, or the opinion of someone else) then it's likely that people who have more than 50 (or maybe 100 or 200) nominations are being nominated by people that don't really know them.
Some Twitch streamer with a thousand followers would have little problem getting 50 nominations by snapping their fingers, regardless of their qualifications.
This being said, there's probably a better way.