[sohkamyung]

I believe some of the 'random' guesses is actually the background AI system suggesting an identification.

Depending on the organism, it mostly works until it doesn't. :-) For example, in my region (Singapore), it's suggestions for mammals, birds and butterflies is mostly correct at Genus, Order or Family level.

I do agree that some identifications could be better and try to help by putting comments when I see something wrong (e.g., "this species is not native to the region"). But even putting in the wrong ID is better than not putting an ID and leaving a sighting as "Unknown". There is a huge pile of unknown identifications that nobody looks at because the experts usually filter by the organisms they know about.

Here is an old (2016) article about the AI recognition system being used by iNaturalist [1].

[1] https://www.inaturalist.org/pages/computer_vision_demo