What to do with 100% Aron?
Just evolve it? Or wait for a community day that might never come? What to do?
No, better yet, YOU complain "who's the idiot with the aggron?", looking at other players accusingly while hiding your phone.
Seriously, Aggron is a great pokemon for a new player, it lets them participate in a raid and not get KOd immediately, and do a little damage, while they build up their team so they can really contribute later. New players shouldn't be Aggron shamed, they should just be informed that their Aggron is a stepping stone to better things, and you're hopeful that they are working towards better counters.
Every so often when im with friends and they're using their alt or have a friend along with them we jokingly say whose using the aggron because we know they dont really play much.
My 98% one was great to me in starting up, helped conserve potion agaisnt things like blissey and tyrantiar in gymswhile I didnt have a machamp. A lot of people hate it because they expect people have fully optimized counters, maxed leveled and such. Aggron does good as a bit of a stepping stone, like you said. Its hard to get those optimized counters when you cant raid because you dont have optimized counters. Helped me do magikarp raids while I buddied my dragonite which helped get a latios that helped me get a few other good pokemon that help me now do tier 5's in smaller groups
You cant start off at the best. you gotta work your way up. Its easy to forget that when you have the best of the best. People done jolteon or vaporeon shame people when they are using in raids, and they too are stepping stones to better raid pokemon
Plus it is just fun to throw into a raid to trigger mystic players when im the only instinct.
We dont know how it could do in PvP, aggron does have great TDO and a good number of resistances, it could do well.
Most people where I am are actually holding on to almost all pokemon they find now that have good TDO because we dont fully understand how PvP will work and better to be prepared than not
The big problem that Aggron will have in PvP is its double weakness to both Fighting and Ground. With two charged moves available, there will be plenty of Fighting moves and some Ground moves out there. Either will thrash Aggron mercilessly. When your foe doesn't take either type, Aggron can do well, but if they have one or the other, Aggron goes down fast, and can bring your whole team down with it.
(All this said with the caveat that we don't know exactly how PvP will work, and all of the above might be completely wrong.)
We dont really know how relevant fighting will be in PvP, fighting's main use is a few specific ones; countering tyrantar which the addition of the second charge move will likely allow mewtwo to do which I agree will hurt aggron, but the shields and its resistant to psychic might help, countering gym defense blissey which in a game with something like pvp, the blissey will likely outlast a fighting type.
Ground is somewhat irrelivent as ground moves are really trash and in lower tiers, most ground types like rhydon/perior are both cursed with bad moves and weak to steel. I could see something like earthquake metagross hitting it hard as it also resists steel and rock. I agree Aggron's not perfectly locked down like it could be a first round pick, but thats the thing about PvP, every pokemon does have its weaknesses. A single pokemon wont really hold down the team, its the combination of the three that will.
I don't see how a community day could really help Aggron, unless it somehow alleviates its double weaknesses to Fighting and Ground attacks. Outside of that, it's a nice, tanky, steel and ice attacker.
Okay, maybe if it had an attack like Doom Desire, but AFAIK, that can't happen, Doom Desire is a Jirachi special. And even then, Machamp and his fighting brethren would shred it.