It means that solvers convinced people that folding bluffcatchers or bet-folding value hands is a mortal sin, therefore most regulars tend to exploit capped ranges by betting/raising very thin and underbluffing, unless players default to overfolding in specifc scenarios.

1) In mway it's very important to bloat the pots only on hands that can keep the aggression on most runouts. If you don't have a club it's going to be extremely tough to proceed on a club turn. It's true you block AQcc and KQcc, but those hands stills have a huge amount of equity against QQ no club and by having a club you have better equity against two combined ranges (it's extremely important in mway). You can check even when you run HU simulations that overpairs with FD blockers have more equity than the ones without it: in mway it means you can bet more with those and check with the others.

2) Do you mean the 99 hand? I'm not a huge fan of minraises on the turn there, because it would represent a hugely polarized range that doesn't need protection and I don't like overpolarizing myself in such scenarios.

I just try to understand whether I ran in my opponent's top end of the range (nothing I can do), if I made a theoretically reasonable play or it was a mistake by my part or if my opponent just doesn't like to fold and decided to make some embarassing call to prove a point. I will adjust according to the appropriate case.

I thought about overbetting, but I wasn't sure about the sizing. Probably the only one that makes sense is to go all in , as I expect to get called by 2p+ with a 150% pot bet. Him checking behind is not a disaster, once in a blue moon it's possible he decided to raise something like ATs to check the river (very unlikely, but you never know). So I think if we decide to bluff we're going to put all the money in anyway, overbetting works only if we expect villain to always check hands which are worse than a straight (I expect a straight to mostly call).
Also being a 42/10 only gives us ideas of how he plays preflop. There are some recreational players that have similar stats, 3bet AK and QQ+, but will always 3barrel postflop. We don't know how much they bluff or thinvaluebet just from the preflop stats.

Yes, they are "regs", most of them are very exploitable. In general tables tend to run for a bit to avoid the 12 hands penalty, then the weakest regs will quit and the table will break.

Feels like AQo is suboptimal play, relying on river bluff and not having much of implied odds. Don't think you will agree with me, but even in theory your hand likely isn't calling turn raise at all. Your betting range so strong that bet calling AQ on the turn is pretty much saying: I'll make it + EV on the later street trying to get him off 2 pairs or check-down for enough EV.
+This line as we witness from recs is pretty underbluffed

So I will agree with forCarlotta , and overbetting river seems like unnessisiarly high variance possible making ton of money, possible burning money play. Cheers

About high variance - you are correct, if playing low variance poker you won't go far and get destroyed by good opponents. Is this spot high variance one or have to be? Answer is No. Personally to me seems like you played wrong way and afterwards convinced yourself that it is high EV line and good play.

Again disagree with you, something like 24/18 nits yeah. But solvers showed that playing tight and nitty preflop is the way to go. Before we had those 30/19-20 guys which nowadays playing 25/20 or so. Because it is clearly much more profitable with improving players( mid-high stakes crushers from stars will approve).
No point to reply to this comment or continue disscussion, I wanted to point out for viewers(newcomers) so they should take that play with grain of salt

I didn't say 24/18 are nits, but back then nits considered playing 24/18 or so "high variance" or too loose.

A play might or might not work against a certain player, you just take notes and adjust accordingly. Even in the video I said that against this player it's reccommended not to run big bluffs, but you can't know it until you (or somebody else at the table) try it; it's actually a super profitable play against most recreationals, as they tend to be quite scared of rivered flushes.