Their comment proposed something that would "be the answer here".

What does "here" mean? It's logical to expect "here" to refer to a scenario that includes cases like the one in the article. If it's some scenario that excludes cases like the one in the article, then it's not actually relevant to the discussion.

(Tangents are OK. It's just confusing if they're introduced with phrasing that makes them sound like they're not tangents.)

"here" in that comment is not referring to any specific scenario. It is referring to the problem discussed in the sentence immediately following it, that public prediction markets can shape the outcome of the events they are predicting.