Cold Calling Oddities at Poker Stars .25/.50

[MaxBialystock]

I've been playing Poker Stars .25/.50 for a few weeks now - my latest effort at learning limit holdem - going well so far. However, I've noticed something I've not seen previously - a habit some players have of cold calling every single raise (2, 3 or 4 bets) of the person to their immediate right, but rarely cold calling anyone else's raises. That there are microlimit holdem players that habitually cold call is no surprise, but that they seem to be employing some sort of deliberate strategy with cold calling - just palyers to their immediate right - seems very odd to me. None of the players I've seen do this appear to otherwise good players.

Has anyone else noticed this? What might be driving the thinking behind this strategy? FancyPlaySyndrome? A new strategy book? Some kind of prank advice website? Is there any kind of legitimate strategic or tactical thinking behind this kind of play? Just wondering...