Alright, I see I'm going to be the first one to open a can of worms here, but I feel it's necessary to get any discussion going.
I have a mixed feelings about smogon tiering system as a whole. I don't care that much about the generation V... yet, but I felt that in gen IV, everything past Garchomp was handled horribly, with biggest offenders being Latias and Salamence.
The former was literally kept being tested until it was banned, despite the majority of
over 120 voters voting it OU three times in a row (four if you count the initial test). Why did this happen? Simply because people who wanted Latias to stay OU stopped giving two shits about suspect testing something they already believed was firmly OU. This left us with about 20 voters (as seen
here) making the decision for hundreds who played the game. Most of which were, of course, people who wanted Latias gone ("most", as in 13 people lol). I do not want to spin some conspiracy theories here, but everything that happened after that ban made it seem like the decision about Latias tiering was made
before the official vote was held at all, similarly to the RSE Baton Pass "test" from not so long ago. Every mention of Latias was swept under the rug in the span of two days, which was a bit suspicious to say at least.
On the other hand, Salamence was a victim of a horrible tiering experiment known as the smogon council. Holy crap, never before have I seen something as stupid as this. Reason to test? "It wouldn't hurt". Yeah, you're reading it right, the whole excuse to
ban test Salamence (or at least the one that was mentioned the most) was "it wouldn't hurt". This was done despite Generation V already knocking to our doors, Stage 3 being already over as well as general unwillingness to test (read: ban) anything else. So let's say you wanted to do something to prevent Salamence from going to Ubers lala land. Well, I hope you have at least several alts on the top of the leaderboard, some smogon tour wins under your belt, as well as craptons of free time needed to write a huge paragraph describing why do you think a monster from a children's video game needs to be allowed. That was the bare minimum for being considered (not yet accepted!) for the 9-man council which sealed the fate of one of the last powerful Dragon-types left in OU. Fun stuff, no? In short, a pointless ban which skewed the image of "real" DPPt OU for years to come.
The sad thing is, during this time (which was half of it's history of DPPt mind you) the game never experienced any sort of stability, had no chance to truly develop. Anyone who played gen 4 knows that the most important discoveries, like the suicide leads and Yachechomp were made before the suspect testing madness even begun. It is only when Salamence got banned that people finally got the chance to play in a stable metagame... but one month later, a new generation rolled around, and all this effort went to vain.
Thank God generation V brought us Philip7086, who finally poured some common sense to the stale suspect system, but I digress.
I have some thoughts about generation V suspects as well, but I'll leave them for another time.
Let the flaming begin, shall we?