I'm not sure if you noticed where you were reverted on the Victory Road page, but I just thought I'd give you a heads up that running around in the game is not exactly a fool-proof way of "proving" that some Pokemon doesn't appear (not to mention being inefficient =P ). Most games should have ripped encounter data out there somewhere. I'm not sure of a source I can link you to directly, but you may be able to find some by searching. I think map editors can also allow you to see/alter the Pokemon encounters that are directly in a ROM's maps. Either of these would be both faster and more reliable than just saying "I didn't see [x] after running around". Tiddlywinks (talk) 16:52, 8 August 2017 (UTC)
(The response below is technically copied from here. Tiddlywinks (talk) 00:21, 10 August 2017 (UTC))
As I've been playing through the series gen by gen recently, I've noticed that the more recent gens are full of misinformation on encounters. Diamond/Pearl had a few apparent hiccups, but I'm running into them all over the place in Black/White. Serebii's database is even worse, listing pokemon in completely incorrect routes and areas. It's clear that the encounter rates thus far have all gone on people's experiences and nothing else. I'm just adding mine to the pool--and mind you, I'm changing nothing unless it's been hours upon hours and I'm absolutely, 100% sure.
If you want to dig up ROM data, by all means, feel free. It has not been done with this encounter tables. I don't have the time or interest in doing it, either--again, I'm just adding my contribution to improve the tables. Even if it won't make them 100% perfect, it will be a step closer to perfect accuracy. If you want to make the tables LESS accurate by reverting my changes, I can't stop you; I went out of my way to improve the data, but if that generous act is not appreciated, I'm fine not bothering. - Xelrog T. Apocalypse (talk) 18:14, 9 August 2017 (UTC)
First things first, FYI, we prefer that conversations stay in one place, so I've just copied your response from my talk page above.
Otherwise: I was trying to be helpful. Out of curiosity, why are you spending "hours and hours" in the areas you've edited? Tiddlywinks (talk) 00:21, 10 August 2017 (UTC)
To catch a pokemon at a specific level. Why else? Several times now I've seen a range listed, such as L31-33, and gone looking for a L32 because it's a nice even number, then encountered dozens of L31's, dozens of L33's, but not one L32. Cases like that. - Xelrog T. Apocalypse (talk) 23:00, 13 August 2017 (UTC)
Why else indeed. =P I'd wager most people don't much care what level they catch, unless they maybe just want the highest level. But if you say so; whatever floats your boat. Good luck. Tiddlywinks (talk) 23:50, 13 August 2017 (UTC)