If the error is too frequent it will be hunted down very fast, what you want is errors that happen no more than once every month, maybe add another level that ensures this only triggers based on the running time.
I have been looking at kagi but their pricing is definitely made to force people to buy the professional $10 package.
100 or even 300 searches/day would be unusable for me, you quickly spend 10 searches refining a query for something special, and when developing you do like 5-10 searches/hour.
For everyone to get a bit of Bezos we have introduced Bezos Biscuits (TM), now with 4 new flavors: heart, liver, kidney and the most requested testicles.
How?