Has nobody else noticed that the benchmarks use ext3 for Linode and ext4 for DigitalOcean? Not that the SSD's won't outperform hard drives anyway, but that's on

Has nobody else noticed that the benchmarks use ext3 for Linode and ext4 for DigitalOcean? Not that the SSD's won't outperform hard drives anyway, but that's one extra variable that will skew results.