Ok ill start this off by saying this: We need a ruling section, it will really help on some of them cards we don't understand :/.
Anyway this is about skilldrain, the card that negates all faceup monsters effects. I kinda need help understanding it better, cause effects can still activate, and are flip effects applied? I don't remember :/.

Hey TC! I agree we do need a ruling section

Hope this helps!

http://yugioh.wikia.com/wiki/Card_Rulings:Skill_Drain

Flip effects don't work because they activate on the field even though its destroyed by battle. There are some effects that activate after it leaves the field like juijutsu master or something like that. The main thing you need to know is that card effects of monsters can still be activated on the field, they just get negated while on the field only. So things like cardcard and stardust dragon still get to resolve their effects, because they resolve in the graveyard. This is not to be confused with cards like breakthrough skill and effect veiler, because even if their effects resolve somewhere else that's not on the field, their effects are just negated and "they don't care where they are when they leave the field".

EDIT: Moved to Ruling Questions

All you should remember is check the monsters effect; Flip effects activate on the field such as night assilant and cards such as reborn tengu's effect activates in the graveyard.

I think you received the answers you needed TC. Solved and Topic Locked! (If you want it open again, I can open it).

Taisakuno Shouri wrote:

Flip effects don't work because they activate on the field even though its destroyed by battle. There are some effects that activate after it leaves the field like juijutsu master or something like that. The main thing you need to know is that card effects of monsters can still be activated on the field, they just get negated while on the field only. So things like cardcard and stardust dragon still get to resolve their effects, because they resolve in the graveyard. This is not to be confused with cards like breakthrough skill and effect veiler, because even if their effects resolve somewhere else that's not on the field, their effects are just negated and "they don't care where they are when they leave the field".

EDIT: Moved to Ruling Questions

Some points are wrong.
Flip effects activate on the field and RESOLVE on the field EVEN if the monster is moved somewhere else. Every single effect resolves where it's activated, the position of the monster doesn't matter (as long as it doesn't need to be face-up on the field to be able to resolve successfully, e.g. Lightsworns). The only reason that Skill Drain and Fiendish Chain need the monsters to be face-up on the field to negate their effects is because they're continuous trap cards. Continuous trap cards need the monster to stay on the field (the effect still resolves on the field but it won't be negated if the monster isn't there), while cards like Veiler and Breakthrough Skill don't care about the monster's position. They negate it's effect anyway.