[Zhyl]

Shouldn't it be "What are rocks?"

[Wooddar]

Yes but in this case “rocks” actually refers to our team’s project to migrate from Oracle MySQL to Postgres. Did they not cover that in your onboarding?

[rimliu]

I sometimes use "whois X?", even if the correct form would be "what is?" or "who are?". Using and old IRCism is just more fun.

[Zhyl]

I guess it would depend whether you were accessing the URL in the second or third person.

[Jestar342]

it could easily be "What is 'rocks'?"

[Razengan]

Or that the entity/object represented by the noun "WhatIs" rocks.