Why do dividend lovers hate the mention of Yieldmax

I'm sure it's been asked before. I came across YM through my investments platform and picked MSTY. Before investing I asked a dividend group and they all pretty much ripped me a new one for mentioning Yieldmax. Saying I should invest in Voo for a solid dividend( $500 share price and $1 dividend per share, doesn't sound great to me but I'm new to dividends).
Looking through a bunch of the available etfs to me i found MSTY whicj appears to be a decent enough ETF fund thing and in the last 12 months it's roughly the same price. the other groups said over time I would just lose my money through the dividends. Am I missing something or is it as good as it appears to be?
I'm only a small time investor about (2k in shares total). Can you tell me why pick MSTY over something like VOO?

Edit: So many insightful responses. thank you team!. think I have a better understanding of the why now