You think Kowarenai is 1400 OTB strength but has 2500 online peaks because he plays for nothing but cheap tricks every game? What?
Even for the absolute youngest and best blitz specialists the biggest gap you would expect between an OTB rating and online blitz is about 500-600 points.
I have played Kowarenai before, he doesn't play rubbish, actually a lot of the games he wins are grinds where he slowly outplays his opponent (many of whom are titled players).
1) He actually IS ~1400 OTB.
2) I have yet to see a game where he was outplaying a strong opponent (1800+). I see him making sub-par moves quickly and setting up cheap traps (i.e. ones that make his position worse if his opponent handles them properly)
The rating gap discrepancy is actually what intrigued me, as it is highly unusual to see such a gap.
It's actually reading this thread and seeing @PawnTsunami's detailed refutation of your opinion about @Kowarenai's games that has disproved your assertion LOL
I actually went through his games while watching the coverage of Round 11 yesterday. His actual playing strength is about what I would expect from a ~1400 level player OTB, so him getting to the 1400-1800 range was very quick. The reason it takes him so long to move passed that is because he plays for cheap tricks. When the tricks work, he gets a quick win. When his opponents are paying attention, he picks up losses (even to players whose rating is much lower than his own). The kind of crap he is playing works in 3+0 or 1+0 games because many times guys are premoving in the opening and frankly, he gets lucky (i.e. one of his more recent games where White was playing a KIA setup and premoved Bg2 when K had played Bh3 the previous move).
1000 points is enormous though... he's definitely better than 1400 OTB. He just has a bad mindset or something. I haven't seen his OTB games, but you can't be 2500 in blitz by playing 1-2 move threats over and over... that'd be more like 1300 blitz or something.