I don't use it myself, but I feel like the way Grok is integrated into Twitter is a pretty good thing for discussions, as it is certainly a more objective and rational voice than most human participants. I think it's good that people tag @grok if they don't understand something or want an opinion, even if it looks pretty silly to see "@grok is this true" repeated multiple times in replies. That said, Musk's attempts…
Grok is a bot that: 1) sometimes goes mechahitler 2) was trained to be biased against empathy and understanding (because woke). 3) is customized to spout Elon's opinions as fact. Claiming it is "objective and rational" seems like a misjudgement to me. If it really is more objective and rational than the average xitter poster, that says more about that platform than it does about Grok.
Also I think you overrate Musk's success in fiddling with the model. As I have written, I also don't like his attempts to tune it to his tastes, but if you see the outputs that people get from Grok, it seems mostly fine except in the specific scenarios that Musk seems to have focused their misalignment on.
Of course something like Claude being integrated into Twitter would likely be better.