I did this for covid. The second my vaccine kicked in I dropped all precautions and started staying indoors with as many people as possible for as long as possible, basically trying to never go a day without a small exposure. I’ve tested for infection a number of times and a university study tested my antibodies periodically for a year and I’ve never had a detectable case. Continuous exposure to small amounts of the virus seems to have kept me more free from infection than those that took significant precautions. I’m not just reckless, I used to have severe OCD, so living carefully with lots of precautions is actually more dangerous for me than the virus.
So, another anecdote: I have COVID right now. I have had a bunch of self tests at home, and have tested myself every single time I have had any kind of cold or fever.
Despite me getting on a crammed bus every morning and afternoon to go working in the same room as about 80 other people 4 days a week I didn't get COVID (that I know of) until now.
Sometimes we are just lucky. Maybe the vaccine worked better-than-average for us. Maybe the route of infection works less well for us. Maybe we had it without noticing it at all
I also live in a large city, in TX, so I most definitely had regular exposures.
Whether asymptomatic or not infected at all seems like a distinction without a difference. Either way I didn’t miss work, vacations, or get noticeably harmed. The whole point of my strategy was to expose my immune system to germs it was well equipped to fight off quickly and expose it continuously so I didn’t encounter it after it had mutated too much to be recognized.
I’m well aware of the pitfalls of anecdata, I just thought my approach was different enough from what most people did to be worth sharing. There will be no studies to test my strategy, so all we can have is my anecdotes.