There is no privacy and they've done some weird stuff to play the numbers.
E.g. they sent half of all SHIB to the creator of Etherum, why? Because that doubles the "circulating supply" and therefore market cap while not increasing the available supply at all.
This is a scheme to artificially increase the market cap, which mostly worked because VB burned 95% of all the SHIB he got & it got a lot of press.
It got popular before VB burned it.
and a community workgroups page here: https://www.getmonero.org/community/workgroups/
and here's a Twitter-article (ugh) from a maintainer of Monero regarding an attempted attack on Monero's privacy which refers to a number of privacy enhancements to Monero that have been implemented over the last three years: https://threadreaderapp.com/thread/1326130648491417602.html
Whether you take this as proof of legitimacy or otherwise, the IRS has a bounty of $625,000 for anyone who can crack the privacy aspect of Monero: https://securityboulevard.com/2020/09/can-you-crack-monero-i...
Skip to the conclusion of this review of Shiba Inu coin: https://www.coinbureau.com/review/shiba-inu/