Stellar
of the Distant Past
To clarify: competitive discussion is discussing a Pokémon's future success in any Smogon or Nintendo formats (especially regarding a Pokémon's Uber status). e.g., "Mega Salamence will be OP because 252/252+ Hippowdown has a 97.7% chance to be 2HKOed after SR and Leftovers by 252+ Aerilate Double-Edge assuming Mega Salamence has an attack stat of 170!" Things involving damage calculations are a big "NO" as a rule of thumb. The OU forum mods disallowed this speculation based on the limited information we have available to us, so it makes even less sense for that sort of discussion to occur in OI (a forum that is a casual's haven of sorts).
Saying something like "Mega Sableye will be really good in-game because it doesn't have to worry about status" is fine. We have enough information to make this sort of statement — for example, Mega Sableye has Magic Bounce, so it doesn't have to worry about status and will save you tons of ¥ on Full Heals and Lava Cookies.
Hopefully this clears things up.
Saying something like "Mega Sableye will be really good in-game because it doesn't have to worry about status" is fine. We have enough information to make this sort of statement — for example, Mega Sableye has Magic Bounce, so it doesn't have to worry about status and will save you tons of ¥ on Full Heals and Lava Cookies.
Hopefully this clears things up.