I posted an answer on Stack Overflow and I'm not sure why it was deleted. I went back to look at it and I didn't see anything wrong with my answer that would cause it to be deleted.
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You answer doesn't answer this question, and seems to only advertise your own tool, hence why it would have been deleted:
Perhaps you could have linked to your project as a comment, but to be honest I'm not sure whether this kind of advertising of your own products is entirely appropriate.
Your answer is a link-only answer which is discouraged. Links break and such posts get useless.
Besides that you are only promoting a tool you developed. That is discouraged too.