I don't think you're alone there. This was EXACTLY my mindset as well.
I have the same problem with the various Japanese logic puzzles (Soduku, Nurikabe, Hashi, etc):
1) This is fun!
2) Hmm, I'm using the same algorithms to solve every puzzle
3) I could probably write a solver
4) Don't write solver. Move on to something else.
I singlehandledly forced the replacement of Expensify at my company after some dodgy billing practices. They incrementally, yet substantially, raised our bill over a period of eight months with no notification to us whatsover. It was hard to detect because our bills were already variable values per month (based on active users).
When I discovered the higher rates we were paying I reached out to support and they said I wasn't notified because I elected to opt out of marketing emails. They wouldn't issue a credit either.
I threatened to cancel service and they truly couldn't have cared less. So we dumped them. Very satisfying. It's a shame - the product was ok. But from my persepctive, F these guys.
I have the same problem with the various Japanese logic puzzles (Soduku, Nurikabe, Hashi, etc): 1) This is fun! 2) Hmm, I'm using the same algorithms to solve every puzzle 3) I could probably write a solver 4) Don't write solver. Move on to something else.