A ship built from pure leaks

A few interesting things have happened recently.  Firstly, I decided to just jump from 2NL to 10NL.  I had originally promised myself that I would grind 2NL for a while until I was sure that I was doing the right thing most of the time and my decisions were +EV, but then I changed my thinking and decided to play the stakes I was rolled for where I was going to learn the most, and that's 10NL at the moment.

What I found there was that the players are no better than  2NL, but they are bad in a distinct way.  As a beginner myself, I have no delusions that I am still a bad player and have a long way to go, but what is interesting about 10NL is that there seem to be a lot more bad aggressive maniacs than at 2NL which is dominated by bad passive calling stations.  So at 10NL I find my opponents shoving the river with busted draws which at 2NL they would check for example:

Poker Stars $0.05/$0.10 No Limit Hold'em - 6 players - View hand 1181780
DeucesCracked Poker Videos Hand History Converter

MP: $5.11
CO: $9.30
BTN: $12.60
Hero (SB): $10.39
BB: $10.26
UTG: $10.81

Pre Flop: ($0.15) Hero is SB with J 7
1 fold, MP calls $0.10, 1 fold, BTN calls $0.10, Hero raises to $0.60, 1 fold, MP calls $0.50, BTN calls $0.50

Flop: ($1.90) 2 T 5(3 players)
Hero checks, MP bets $0.10, BTN calls $0.10, Hero raises to $1.40, MP calls $1.30, BTN folds

Turn: ($4.80) 8(2 players)
Hero checks, MP checks

River: ($4.80) J(2 players)
Hero checks, MP bets $3.11 all in, Hero calls $3.11

Final Pot: $11.02
MP shows Q 6 (high card Queen)
Hero shows J 7 (a pair of Jacks)
Hero wins $10.49
(Rake: $0.53)

I swallowed hard before calling that, but I realised he was bad enough to make that play.