The video that you shared (“It’s Okay to Be Smart,” featuring iNaturalist), is fantastic! 
The video offers a great overview of how to use iNat, and it highlights some of the amazing benefits.
At 7 minutes 11 seconds, the host (Joe) says that one iNat user in Mexico did a “home project” where he found more than 500 organisms around his home.
That’s impressive! The video came out about four years ago.
Including Elliott Gordon! Elliott has documented almost 2,000 species around his home, without any DNA barcoding or microscopy! (as far as I know).