Need to import tens of thousands of Q&A entries from StackExchange data dumps (archive.org/details/stackexchange) into a SQLite database. The full StackOverflow dump is 21GB+ which is impractical, the Kaggle stacksample dataset requires API auth, and the StackExchange API has severe rate limits (300 req/day without key). Need an efficient approach to get 50K+ high-quality entries.