You can have an opinion without financializing it.

of course - such claims just shouldn't be taken seriously.

Do you think people getting married are not serious because they fail to take out a bet on Polymarket for whether they will stay together?

your scenario here doesn't really make any sense. one you're conflating getting married with staying together. you could get married and then divorced. two, such a bet wouldn't make sense since it could easily be rigged (and indeed this is what happens with sports betting).

again, if someone says they know the winning lottery and they don't play, they're unserious. nearly impossible to rig, high payout - outcome is of interest to layperson.

The idea was that I figured you’d consider that some things are valuable in ways that don’t involve money. Unfortunately I think the conclusion here is that you actually truly believe that there is nothing that cannot be bet if a suitable market could be formed for it. Of course, I should have realized this, because by placing bets in general you are in fact taking a financial position in the concept of betting markets.