re: Poker & Omaha H/L Starting hands
Yes, a JJK4 rainbow is pure trash in HL. It's even close to trash in Omaha hi, but not as much.
On the low hand you showed us, it's kind of a coin flip. While you did not have the nut low, you have to look at the entire texture of the board. There was already
a low before the river, and there was no betting. So it's fairly safe to assume no one had an A2. When the river brings a 3456 it is very
safe to assume at LEAST 1 person has a straight, especially with everyone checking and still in the hand. So safe to assume they are betting the high.
The problem with you calling for a low is this... Before the 3 hit, anyone with a 23 or A3 might have been wary of betting. When the 3 hits, after it was previously checked all around, anyone else with an ace plus 3 4 5 or 6 (A3, A4, A5, A6) ties you for the low (as said before, safe to assume no A2). So you would quarter the pot, and with everyone else folding, you have bad pot odds
and would have LOST money in the hand. So you can look at hindsight all day, but you made a decent call by folding, IMO.
P.S. Silver is right, terrible hand to start with, especially UTG+2. No chance for straight, suited once with a 3rd heart gone, gutshot chance at a low.