If I can make a suggestion on the whole Landorus-T debate: would it be possible to create a second OU ladder where Landorus is not allowed?
To be clear, I am not advocating for banning or suspecting Landorus-T. However, I believe that the creation of this secondary OU ladder is a good idea, for quite a number of reasons:
1: It allows the community to see what the metagame would be like without Landorus, without the need for banning or suspecting it.
2: It lets the tiering leaders know exactly how much demand there is for such a ladder; whether it's a vocal minority, or whether the people calling for a suspect test are just the ones speaking up.
3: There is precedent for a secondary OU ladder in which a controversial element is disallowed, without that thing being suspected or banned in the main OU ladder - I'm thinking in particular of the "no Stealth Rock" ladder towards the tail end of BW2.
4: It satisfies the stated desire of many players to play OU without constantly seeing Landorus, without drastically changing the main metagame (or, indeed, changing it at all).
5: Even if the ladder ultimately is taken down, we'll have learned something through its inclusion. Did it get almost no one laddering on it? That's something to point to when people complain about the mon in the future. Does it seem like a more varied metagame? That could be something to consider for a possible suspect test further down the line. The thing is, we just don't know what a metagame without Landorus-T is like, and I feel like the inclusion of a ladder where we can figure that out is well worth it for that reason alone.
Whatever your opinion, thanks for reading and considering my proposal. :)