Like Uzumaki Macho said there are weekly periods where Zoro fanbase(including me) wank him more than he deserves, but it only happens during these weeks(generally when Zoro does something impressive in the manga). After that, it comes down to normal business as usual and in those times, generally the fanbase isn't as bad as people really describe them to be. Aqeel was really bad before but changed with time.
As far as i know, with the exception of this new guy(Mr.username), i don't think Zoro fanbase really created that much threads to overwank him at all, but for some reasons since a while now, many people create threads about him(most of the current threads are about Zoro) and since i happen to follow the one piece section a lot, i reply to them. Plus, considering i'm a Zoro fan myself, i try to defend him as much as i can but i don't remember one time where i really tried to give him more credit than what was given to him in the manga(could have happened though).
I generally always use references to explain my view and i personally see nothing wrong to defend your favourite character but if defending a character you like make other people hate him, then i can't do anything about it. Concerning his general portrayal in this manga, people want to deny/refuse to admit it or not, but it's true that against some opponents, the real level of Zoro is unknown by us yet
This is generally my opinion in the repetitive Zoro threads that you find in this section
Luffy vs Zoro
PersonA - Luffy is stronger. Why would Zoro follow someone weaker than him?
Me - Luffy is stronger but not because he is the captain. Zoro follows him for other reasons and the whiskey peak battle prove it wasn't because of a difference in power
Battle
PersonB - Luffy wins low-mid difficulty
Me - Luffy wins high-extreme difficulty
Conclusion: You're a fanboy. Zoro fanbase is the worse. For thinking Zoro is weaker but close to his captain level of power?
Zoro vs Smoker
PersonC - Smoker wins mid difficulty
Me - Zoro wins high difficulty
Conclusion: You're a fanboy. Zoro fanbase is the worse. For thinking Zoro is portrayed to be stronger?
Zoro vs Law
PersonD - Law wins low-mid difficulty
Me - Law wins high-extreme difficulty
Conclusion: You're a fanboy. Zoro fanbase is the worse. For thinking Zoro is weaker but close to his level?
Zoro vs Sanji
Enies Lobby Zoro vs Enies Lobby Sanji
PersonE - They are equal or Sanji wins because Jyabura was equal if not stronger than Kaku due to better mastery over his devil fruit and Sanji took him down faster
Me - Enies Lobby Zoro wins between high-extreme difficulty. Sanji had difficulties to put down Jyabura until Diable Jambe. He used his power-up faster than Zoro, hence he defeated him faster. Besides, while Jyabura had his fruit longer, he was relying more on tekkai when Kaku despite having transformation problems, displayed more versatility usage of his devil fruit despite it being new to him and showed greater fire power to the point it threatened even Jyabura, all that including the fact he had more doriki(even if by much) as well as the strongest swordsman in the CP9 makes me believe he was a harder opponent. Still Zoro and Sanji were relatively close at the time but the decisive stronger power-up Zoro possess give him the edge nonetheless
Post-skip Zoro vs Postskip Sanji
PersonF - They are equal because of enies lobby
Me - Zoro was equal to Luffy during a great part of part1. Doesn't mean it remained the same. Past is past. Currently Zoro is portrayed to be stronger. He would win with high difficulty
Conclusion: You're a fanboy. They are equal. Zoro fanbase is the worse. For thinking they aren't equal?
TL;DR: Creating threads just to see if Zoro will be wanked or not like you do sometimes(referring to Algalon) isn't a great idea either because the definition of being wanked or not change depends on each other point of view concerning a character development in a certain manga and it's not like everyone even in the real life always share the same opinion. Hating a character because he gets rated higher than you think is childlish. Like i've said, i myself dislike how Crocodile is overwanked in this section(i don't believe one bit that he is even stronger than Lucci, let alone the number of characters i've seen him defeating in versus) but he still remains and will still remain one of the characters i like the most