The number of his wives is not recorded in history, and Shia scholars do not speculate about this number. At least the scholars I asked said this is not recorded in history.
But in different books, the names of a maximum of 13 women are mentioned as his wives (not necessarily all authentic). They are also not mentioned as his wives at the same time.
I think your own link is best answer to this question.
If he had lots of wives, he should have lots of children also, but the number of his children were 15 according to researches of Al-Shaykh Al-Mufid. Some references mentioned up to 25 children.
It does not seem logical that he would have 100 wives and only 15 or 25 children.
Also, a fabricated Hadith says that he divorced his wives, who then participated in his funeral. How is this logical? Usually a divorced woman, especially one divorced from someone who has many wives, would never participate in the funeral of her ex-husband.
He was a very pious and respected man. Such accusations do not match with his personality as recorded in history. Please study what happened to his body when he died and with whom.
I think if you read your own link carefully, you will find the answer.