Ok, I play small stakes on SwC, and have successfully reported colluders before (with my HH evidence). I like to think I am playing on a fair site, so I gave OP the benefit of the doubt and started to look through the HH's.
First, it seems clear they have been edited. The most obvious one is the hand starting at line 710, which is incomplete. OP is dealt KK otb, rest of the hand is missing, and his stack size is unchanged for the next hand, showing it was folded. Red flag 1.
8 hands are played HU to start with. Not only are there no showdowns, there is only 1 flop seen in a limped hand. HU. Hmmm. Ok, maybe they are just nits.
There are then 35 hands played mostly 3 hands, although Caroline93 changes seats 4 times for god knows why. Valentino sits after hand 33 and is dealt in hand 36. Only 7 of 32 hands see a flop, with no 3! and the first hand to see a turn is the one where the mark sits. So it's not 43 hands with no showdown, it's 40 without even seeing a turn and only 8 seeing a flop! Three handed, that's just really improbable. OP isn't playing tight either, so there should be some playback here somewhere.
Once one and then 2 new players join, about half the next 50 hands see a flop and 10 get to turn or river. There are zero 3 bets in those hands, which again is odd but fits if we just play the best hand and fold the other 2.
Certainly enough to be suspicious, even without hole cards. Will look through the rest as i can.