I bought my headset about 9 months ago and I started getting drift about a month into using it. If I move the left analog in any direction and release it, it will return to the center but in-game it drifts to the right. It's analogue drift, a problem that my original PS1 controllers don't even suffer from.
None of the temporary "fixes" work for more than a few minutes.
I don't have the patience to load my controller down with contact cleaner and wait an hour for it to dry every day.
Running a toothpick around the edge will do literally nothing that wiggling the stick wouldn't do.
And Blowing into the analogue stick like it's a dusty N64 cart will just literally waste your breath.
The only real solution would be for Oculus to actually produce a quality controller to replace the paper weight they shipped with the headset, or at the very least give us custom deadzone settings, because buying a replacement controller, or sending your faulty controller in to get "repaired" will not solve the issue.