I hate to be a pooper, but I have a few questions and some general concerns about this.
I guess my first question is: why? Don't let the one-word nature of my question put you on guard, but I'm just wondering why. Besides my personal convictions about how Brawl is played and what works and why it works, the idea of this seems a little too general. Once people start asking questions or looking for specific information, the scope of this project, I think, is not going to be narrow enough to present what you want people to see. I may be misreading it, though, and correct me if I am.
If you mean a comprehensive and intelligible list something along the lines of:
How to counter Meta Knight Tornado spam: <insert technique> <insert reasoning behind technique with insight>
How to counter King Dedede grab spam: <insert technique/idea/strategy/etc.>
...then I can see where you are going with this. Despite the fact that these things mainly boil down to smarts and knowledge of character specific techniques and strategies (those for Yoshi, in this case), it's a clear-cut goal and relatiely easy to achieve. If you're essentially trying to build a "How to counter <insert character here/insert playstyle here> with Yoshi" guide, then I think this may be a little misguided. Especially when it comes to styles, "when to adjust", and other factors, there really is no
ON button to push regarding when to switch up behavior or to start reading more thoroughly into your opponent.
Individual playstyles matter a lot in this game and I think many things come down to how spam techs are used and not necessarily how often they are used. For instance, we can spend al day talking about the most spammable and definitely the cheapest move in the game--Meta Knight's Tornado. We can discuss how to beat it all day, but in the end, if you're facing a Meta Knight that always waits until you perform an action that takes too long to shield or run out of, then you're boned and
cannot counter the technique (in actually, you cannot counter the playstyle here). I understand that this is a very general and situational example, but I think we all need to realize that
regardless of how spammy this game is, intelligent use of spam is what wins matches. Making a "guide" to attempt to counter spam or melee or whatever, I think, is pretty futile. I mean, just discussing these things is great and I think would bolster the overall intelligence and mental fortification of the posters here. However, I think having something clear-cut that denotes X way of dealing with Y is going down a very...narrow-minded path.
These are just my questions and concerns. If I've implied anything along the lines of me misunderstanding the purpose of this, then please let me know. Thanks.