I have used this web-site more times than I could count to find solutions to programming problems I face.
Solutions include code snippets that save me time to write myself, or language/API features I've never heard of before.
This is an excellent resource for programmers, who want to learn something (general or specific) about almost anything, or who enjoy helping others by answering their quesions. Or, both!
Occasionally there is a well-intentioned but incorrect answer, but these are usually quickly corrected by others. Discussons are, with very very few exceptions, polite and on-topic, which is a refreshing change from many 'chat forum' sites.