It's such a massive waste of space with that widget showing up on popular threads.
An element hiding extension (uBlock Origin for example) works to hide it and restore the content to the full width, but then the widget is also hidden on the main forum page too, where it was actually useful.
Whilst doing a gym run (or possibly any NPC battle), the NPC's next Pokémon are revealed under the HP Bar as soon as the one in battle faints (previously it would wait until the NPC selects and throws out that particular Pokémon) and occasionally you can actually click through and select your next moves before they're even present on the battlefield.
You have to remember that this isn't Pokemon, it's PokeMMO. Trainers, mechanics, and various formulas are all different when compared to the original main series games, not to mention the hybrid generation PokeMMO is currently comprised of.