system
Given the following post, respond as if you're commenting on Reddit:
human
[DragonBall] Are the human Z Warriors just irrelevant?

Saiyans -> Oozaru form,Zenkai boosts,unrivaled fighting spirit,Saiyan Human offspring are said to have more potential than full blooded ones,anything else I'm missing???

Namekians -> Regeneration,stretchy limbs,can sustain themselves with only water,asexual reproduction,certain ones can create Dragon Balls,and can fuse with each other without the need of the dance or earrings.

Androids -> Unlimited stamina,that's all I know that is special to this group.

Frost Demons -> With a few of them being prodigies,I'm not sure what is special to them other than they're probably really hard to kill considering Freeza was sliced up by his own attack,and was still clinging on after the explosion of Namek.


Sooo...what do Humans bring to the table?
gpt
Humans have technique.  Humans came up with:

- Kamehameha, which seems to be consistently more powerful than equivalent energy blasts in the series

- Solar Flare, which consistently wins fights

- Sensing Energy, something that was thought to be impossible without a scouter by the Freeza organization.

- Kienzan, which allowed someone like Krillin to actually injure Freeza.

- Mafuba, which came up again in the DB Super.

- Shin Kikoho: which allowed Tien to briefly match Imperfect Cell

The list goes on.  Earthicans are consistently some of the most creative fighters in the universe.  They lack the raw power to compete with Saiyans, but human creativity combined with Saiyan brute force has made Goku, Vegeta and the rest *far* more powerful than they would have been without their time on earth.

The only species with better technique are the Yardrat with their instant transmission, and the Kais with techniques like Kaio-Ken and Spirit Bomb.