A pro-Linux bias on Slashdot is
A complete myth. At least these days.
Slashdot has several bags of crazy, all competing with one another at various times.
There's Windows fanbois, Linux fanbois, and Apple fanbois. Over the years the ratio of those has swung back and forth, these days I'd say on balance you'd be hard pressed to say there's a strong bias one way or another.
At various times it's been chic to tend more to one or another, now it seems like Slashdot has grown enough that there's at least 30 different kinds of batshit crazy at any given time, all struggling to get out.
But let's face it, the actions of the Linux people in their unwavering belief in the perfection of Linux is no less sketchy than the people whose unwavering defense of Microsoft defies logic.
I'd like to say Slashdot has a bias towards rational thought. I'd like to, but if anything I'd say Slashdot has an increasing bias towards fixed positions and screeching monkeys flinging poo.
There's always been poo flinging, but now there's less rational discourse.