Orthogonal credits are used more frequently by power users. For everyday tasks they'll last a very long time, I don't think any of our users have run out.
Some example Orthogonal user cases:
* customers in sales uses Apollo to get contact info for leads
* I use Exa search to help me prepare for calls by getting background info on customers and businesses
* I used SearchAPI to help find AirBnbs.
Point taken on the copy! We made this writing more technical for the HackerNews audience and try to use less jargon on other platforms.