I knew three people who thought about getting into 40k as Tau because they liked Gundam (not sure which specific series) and Robotech. Obviously, they aren't the same, but there are stylistic similarities beyond the fact that they are giant robot suits.
Weird they'd use Robotech. That was sort of a travesty since they basically butchered the Japanese Macross to make Robotech.
I'd be interested in hearing what sort of reasons and similarities the Tau battlesuits drew them.
The Tau suits look really blocky and oddly top heavy (pretty typical for WH40k models from everything from an Emperor-class titan to a Space marine).
It's a pretty different aesthetic to me.