I learned from a chef that an oven would work better due to the even heat applied all over but in a pinch or if you don't want to do all that, the stove top could be fine.
That's the main reason I do an oven seasoning once a year or so. With my electric stove, it'll get the bottom ripping hot while the sides won't ever quite catch up.
In the oven I can do an even, set 450-500 and hold it there as long as I like. Then I can shut it off and let the pan cool slowly and evenly.
Dude, you're not supposed to scrape off the seasoning every time you wash the pan. I reapply a bit of oil maybe once or twice a year. I normally just wash it some soap and water after cooking.
I don't use soap, I just use a bit of hot water with the kitchen faucet sprayer and I have a flat metal spatula to scrape off any stuck on bits... wipe with paper towel and that's it.
That's perfectly fine, I use soap because I eat meat and my gf is vegetarian so I don't want to leave any grease. Also I find soap just makes it a bit easier to clean.