What is going on with the conspiracies around Mark Carney?

With Mark Carney's election as the Liberal leader there's been a lot of conspiracy theories flying around, likely to discredit him as a candidate.

What's going on with the claims that there were voting discrepancies in the leadership election process? There's claims that Hundreds of thousands of liberal votes were thrown out. Officially only 40% of eligible Liberal party members voted.

Does Carney have family connections to high-level members of the liberals as claimed?

Has he in fact had some shady business dealings? Particularly in South America?

Was he responsible for bad financial decisions in Canada and the UK? or did the respective government just not listen to him as it's claimed?

https://en.wikipedia.org/wiki/2025_Liberal_Party_of_Canada_leadership_election#Results