rivered 2 pair, value bet gets raised

[Rainclouds]

Villain is a bad player, active preflop but passive postflop (50/15/0.7)

I find myself having trouble with assessing what actions from bad players mean. They just randomly do... things. Sometimes they minraise with air, and sometimes with second pair. Sometimes they check on the river with the stone cold nuts.

Here is another example where his line does not make sense. My guess is he just called on the flop with 2 cards, and that he either runner-runnered a straight or flush, or he has air.

But then again, he can have anything... I just can't read those guys. Is this a fold or a call?

EverestPoker - $0.50/$1 - No Limit Hold'em
Seat 1: kartheart ($35.80)
Seat 2: Torcher ($54.40)
Seat 3: gipsy444 ($69.80)
Seat 4: HERO ($98.00)
Seat 5: basholland ($53.45)
Seat 6: ulysse7878 ($39.00)
ulysse7878 posts the small blind of $0.50
kartheart posts the big blind of $1.00
The button is in seat #5
*** HOLE CARDS ***
Dealt to HERO [A [img]/images/graemlins/diamond.gif[/img] 6 [img]/images/graemlins/diamond.gif[/img]]
Torcher folds
gipsy444 calls $1.00
HERO calls $1.00
basholland calls $1.00
ulysse7878 calls $0.50
kartheart checks
*** FLOP *** [7 [img]/images/graemlins/diamond.gif[/img] A [img]/images/graemlins/club.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]]
ulysse7878 checks
kartheart checks
gipsy444 checks
HERO bets $4.00
basholland calls $4.00
ulysse7878 folds
kartheart folds
gipsy444 folds
*** TURN *** [7 [img]/images/graemlins/diamond.gif[/img] A [img]/images/graemlins/club.gif[/img] 2 [img]/images/graemlins/heart.gif[/img]] [8 [img]/images/graemlins/heart.gif[/img]]
HERO checks
basholland checks
*** RIVER *** [7 [img]/images/graemlins/diamond.gif[/img] A [img]/images/graemlins/club.gif[/img] 2 [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/heart.gif[/img]] [6 [img]/images/graemlins/heart.gif[/img]]
HERO bets $7.00
basholland raises to $34.00
HERO ...