For example, the kind of financial projections allowed in SPAC disclosures will never pass the smell test in a conventional S-1 filing for an IPO. It's kind of the wild,wild west now with a high noise-to-signal ratio.
Hopefully, the suitable regulations will gradually roll in, as current SEC chair Gary Gensler is pushing for.
https://www.cnbc.com/amp/2021/12/09/sec-chair-gensler-seeks-...
https://sifted.eu/articles/healthtech-babylon-spac/
SPACs "possibly a “softer” route to the public stock markets."
https://www.sec.gov/oiea/investor-alerts-and-bulletins/what-...