I have to agree it is a bit unclear as to exactly what it is we're supposed to look for. I suppose people are supposed to create opinions based on noted improvements in the metagame.
That being said, what constitues improvement and how one notices/defines it is a bit uncertain. Also as MagicMaster87 pointed out, even if the metagame worsens that does not exactly mean that the suspects aren't bl. It could mean that there's more pokes in the pool who ought to be banned. Of course "ought to" is totally subjective too.
In the end, I guess it comes to down to a popularity contest-- which I'd be alright with personally. My guess is that the suspects will be banned, as the sentiment about them are strong, and I doubt a period without them will do much to change public opinion. People will just be bitching about how registeel, regirock and froslass ought to be banned next-- which again isn't necessarily a bad thing.
That being said, what constitues improvement and how one notices/defines it is a bit uncertain. Also as MagicMaster87 pointed out, even if the metagame worsens that does not exactly mean that the suspects aren't bl. It could mean that there's more pokes in the pool who ought to be banned. Of course "ought to" is totally subjective too.
In the end, I guess it comes to down to a popularity contest-- which I'd be alright with personally. My guess is that the suspects will be banned, as the sentiment about them are strong, and I doubt a period without them will do much to change public opinion. People will just be bitching about how registeel, regirock and froslass ought to be banned next-- which again isn't necessarily a bad thing.