i thought this happens to everyone? I am pretty sure it is a result of tightening the trucks beyond what comes stock, and wearing out the bushings. I noticed the more I rode looser trucks, the less this happened / less noticeable. but it definitely does still happen because you will still be wearing down 1 side slightly more than the other.
this is why nyjah is constantly kicking his trucks down like that before he sets up for a trick. because he rides such tight trucks, its way more likely to happen, especially with the impacts he puts on them. chris joslin does it too.
1 amazing way to combat this is just turn your board around and do a shit load of fs slappy's. they will be back to center in no time, but you will really work the bushings in on the one side (imo which is what you want so it will feel looser on both sides now). if you cant do the slappy just do a bunch of fs powerslides, as much heel as possible.
i think this is also why people recommend starting the trucks off looser and then slowly tightening them over time. because you will get a bit more life out of the bushings this way. it will feel like they start to get looser over time, so you have to keep tightening thme slightly to kinda keep up with it. so you dont wanna crank em down too hard in the beginning, or you will have less to crank down.