People need a schema for any new idea in order to quickly understand what it is trying to accomplish. Saying you are "X for Y" is not being unoriginal; rather,

People need a schema for any new idea in order to quickly understand what it is trying to accomplish. Saying you are "X for Y" is not being unoriginal; rather, it is a simple hack to enable faster comprehension. Heck, I used it to get myself a YC interview (although the company I chose as my "X" was the wrong choice given my vision for the startup - choose wisely if you do the "X for Y" thing)