Originally posted by Cyner
Your characters in WoW have no quantifiable feats. You're just one more adventurer whose ability is questionable in the face of so many powerful foes in the WoW
"Adventurer is the lore name for player characters. Although unnamed and numerous, it is thanks to these brave individuals that Azeroth has been saved on numerous occasions in recent (and past) times.Where a regiment of orc grunts or human footmen fail, the adventurers succeed. Many are one-man (or one-woman) armies, being able to defeat a large number of enemies, whilst even getting stronger. Their strength comes from slaying foes and performing tasks as well as from the magic coming from their armor, weapons or magic items. Yet, when the time comes, adventurers work together, unlocking incredible power to defeat powerful monsters.
Though uncertain why or how, the adventurers saved the day numerous times in recent years. Examples range from stopping Orgrimmar's corruption from Ragefire Chasm and stopping the prisoners escaping in The Stockades.
They also aided in re-opening the Gates of Ahn'Qiraj, fighting off the Scourge during the Scourge Invasions, sparking the invasion of Naxxramas. Adventurers are very loyal to their home factions however, and will hear the call to War.
They journeyed into Outland and helped slay aiding the Shattered Sun Offensive in re-taking the Sunwell Plateau defeating the mighty Legionlord Kil'jaeden. They have also aided in restoring the timeline in the Caverns of Time and holding off the Illidari and Burning Legion in Outland.
More recently, they have joined the fight against the Scourge in Northrend and killing the Old-God Yogg-Saron with the help of Brann Bronzebeard and the Kirin Tor. They have braved the Argent Tournament, even going as far as assaulting Icecrown Citadel and defeating the Lich King alongside Tirion Fordring and the Ashen Verdict"
A lot of World of Warcraft is going through retcon, but I will mention that all events that are not acknowledged in official lore such as the World of Warcraft comics, novels, cinematics and game narration are to be interpreted as if done by adventurers.
Brann Bronzebeard request the aid of heroes when going up against Yogg-Saron. When C'Thun reappear in the comic, it is claimed that during his first return, he was in fact defeated by adventurers. This is claimed by Cho'Gall. When interacting with the death of Arthas, it is stated that Tirion Fordring thanks to the aid of adventurers could bring Arthas demise.
My point is, World of Warcraft heroes are not weak. Not in game, not in lore. The quests that they do are acknowledged as actual events.