This is such a bad take but it seems to be the one being pushed a lot at the moment - presumably as part of the nudge towards "herd immunity".
The problem is we don't know anything about how Covid might affect our health in the future.
They're finding more and more links between Flu and Alzheimers, for instance.
I'm glad my bout of Covid after Xmas was asymptomatic, but I'd rather have not caught it at all.
If you're testing positive on an LFT then there is a 5% likelihood you're still contagious after 10 days, even if you have no symptoms.
If you are testing positive and also have symptoms then you should continue isolating until the symptoms have cleared.