I agree to a point - but not when the first brand gets to a certain popularity mass. Look, for example, at the "tube" segment. They all make me think back to Yo

I agree to a point - but not when the first brand gets to a certain popularity mass. Look, for example, at the "tube" segment. They all make me think back to Youtube as a brand. The four letters won't matter if they don't come after a brand that's massive like Mashable, in this case, it does though. But it seems you will be OK for the reasons you say - much of your audience might not even know what Mashable is - or care enough to make the same association I did.