if i activate greed. my opponent chains dark bribe, and i chain mst to bribes activation, would bribes effect still resolve?

Pray tell, how are you chaining a Spell Speed 2 card to a Spell Speed 3?

There are two huge flaws to your logic.

1.) MST is a Quick-Play Spell, a Spell-Speed 2 effect. Dark Bribe is a Spell Speed 3 effect. Once a Spell Speed 3 effect has been activated, Spell Speed 2 effects can no longer be activated.

2.) This one is a common mistake among newer players, but MST says nothing in its effect about negating. MST will never, ever be able to negate a card. It will prevent Continuous and Equip cards from resolving completely, yes, but it doesn't negate. If you use MST on a Quick-Play or Normal Spell/Trap, the card will still resolve normally unless it specifically states it needs to remain on the field (such as with Swords of Revealing Light... although even then, Swords will still flip your monsters face-up)

I dont see where this is a mistake among newer players only. There are some older players who continue to make that same mistake as well, and what or how long does someone have to play to be considered "newer"?

Well, it's because most new players think that destroying a card will also negate that card.

It's just something that happens, nothing to fret about.

I don't think that magicmaster was trying to be mean or anything...

Did I say that it was a mistake among new players only? No, I said that it was common among them. Of course people who have been playing a lot can make this mistake as well, just like it's possible for a new player to have read up on the rules of the game and know the difference between negating and destroying. But neither case is likely to happen as often.

My point is, its just a error, and it doesnt matter who makes it. In real life, you arent always going to know how long someones played, so its just best to leave the labels off mistakes unless someone actually says that they are a new player.

As a Judge, I've had to give rulings to veteran players who I feel should know the game, so anyone can make an error "if" they arent staying current with Rulings or Game Mechanics.

oh well thanks guys
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Actually, while I would agree on most errors, on this one I'll have to disagree. If you've ever played a serious tournament, you shouldn't be making this mistake. This is not a mistake you will make as a lapse of concentration, or a hasty move. Once you've been told MST does not negate, you should never make this mistake again. The only way a veteran player could make this mistake is if they have never played MST in their decks before. I don't know anyone myself who fits that bill though ...

The reason Veteran Players get mistakes called on them IS because they have been playing for so long. Imagine playing Mirror Force before they removed the "negate the attack" reference. Not all players stay current with errata's and updates, and just rely on Judges to tell them when they are right or wrong. Bad way to play, but it gives them the excuse when things go wrong, that their opponent should have known how the card was played.

Just this weekend, I watched a Veteran Player (someone with 4 years of playing) go up against another Veteran Player who I know has Topped at a Regional, get cheated out of a possible Match win, all because he allowed his opponent to use Premature Burial on a previously summoned Demise, and the controller used the effect to destroy all cards on the field and attack with Demise for game.

Whats wrong with this picture?? Two Veteran Players. The rules for Premature Burial and Demise havent changed. Mistakes are made at all levels.

But that sort of thing is an oversight. That just doesn't happen with MST because it never has, doesn't and never will negate anything. No errata, no change, no misunderstanding, no ambiguity. A card that has been a staple forever, and a card no self-respecting player with more than a month's experience hasn't played yet. Your example is fairly bad, but its something I can actually SEE happening when a player is a little tired, not paying close attention. The MST example ? No way. You shouldn't make that mistake unless you are fast asleep.

the only reason i thought it, i hardly ever play......i like building decks, but never get to play them
so i hardly ever get to know the rulings