I have more than one approach.
For plants I will usually only post one or two observations of any given species in a particular place in any year. So, I won’t post dozens of observations of species X on my own property in one year, but might post it again the following year, and I will generally post the same species in every other location I see it.
For bees, butterflies and other pollinators, I will generally post almost all of the individuals I see, because I belong to a couple of projects specifically for studying pollinators. (although if a particular plant has multiple individuals of the same species, I will only post one or two, making sure they are actually different individuals.)
And I post everything that I’ve never seen before, because who doesn’t love a “lifer?”
Here’s a perennially popular thread:
https://forum.inaturalist.org/t/what-is-your-favorite-lifer-from-this-week/24219
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