I'm fairly confident that some of the grammatical advice I've been reading recently is arrant balderdash. It relates to the distinction between the ‘who’ and ‘whom’.
I'm sure this is a classic case on this forum, and I'm curious to see if I'm mistaken or misleading information has been disseminated. Both examples are from Quora.
The first instance where a Quora thread contains possibly erroneous advice is when a user (Melanie Lee) implies that ‘you know who I'm talking about’ is grammatical. However, this appears to be the grammatically correct version: ‘you know whom I'm talking about’. In the relative clause of the example sentence, there is a subject pronoun, so the relative pronoun should take the accusative (a.k.a. objective) case. I'd also commonly say, 'I'm talking about him/her/them’, so I could easily say ‘whom’ instead. This rephrasing of the relative clause into a sentence should show my logic. The thread: https://www.quora.com/Shouldnt-Voldemort-be-called-You-Know-Whom
In another thread, a different Quora user (Warren Sentes) claims that ‘"Do you know whom it is from", is actually the incorrect use of the object pronoun’. I disagree! It seems absurd, as ‘it’ is the subject of the relative clause! The gender-pronoun test for grammatical cases can even be used here: it is valid to say that ‘it was from him/her/them’, so it is actually grammatically correct to also write ‘whom’ there as well. How can this be taken on as the top answer? The thread: https://www.quora.com/Is-it-correct-to-say-do-you-know-who-it-is-from-or-do-you-know-whom-it-is-from
Is there something I'm missing? I thought I properly understood this rule.
I appreciate any answers. Thanks in advance.