"I don't do treatments."
"I never will."
"everybody has some..."
None of that is justification.
I am not an advocate for medicating bees.
But I'm also not an advocate for telling/convincing "I don't do it, so you shouldn't", and then you have dead bees.
What isn't being said is that you most likely won't need to use it IF your bees are well fed in the fall and spring.
What tends to happen is 'underfed bees' make up for a lack of body mass/fat by eating pollen more frequently.
(Like a sprinter that carbo loads)
This puts more wastes into the bee's gut, and is both more material for the spores to grow in and more cycles of stomach acid to rupture more spores and more disease. Oddly, fatter bees need to eat less to stay warmer.
So if your conditions necessitate, then medicate.
Necessity being: nearby sick hives, history of nosema, and the fear of loosing the only few hives you have.
But try your best to make the conditions such that you don't need to medicate:
-Make sure to feed your bees to maintain a good, healthy, weight and condition.
-Make sure the bees get the most sun to assure the most day heat/light to eat and cleanse.
-Make sure there is enough feed/honey/pollen to promote healthy gut motility (to flush out spore concentrations).
-Make sure low hive entrances are not impeded with debris or dead bees (and use upper entrances).
-Cull frames/combs that have been heavily feces fouled (heat treat boxes).
I gave you how not to need it, not just don't do it.