Define the question before collecting posts
Reddit Collector is a Reddit data collection API for social research teams working with an independent historical archive. It is not official or affiliated with Reddit and does not provide live data. Start with a bounded question about the material you intend to examine, rather than treating the archive as a census of a community or a measure of public opinion.
A collection brief records the community, unit of analysis, intended period, inclusion rules and stopping rule. Decide whether you are studying posts, comments or relationships visible among received records. Document why a keyword or minimum score belongs in your selection. Those choices can exclude relevant material; neither a score threshold nor a small first page is a random or representative sample.
The archive does not guarantee complete coverage, immutable results, a fixed schema or permanent access to a record. Keep the responses you actually use alongside your brief and local processing notes. A saved copy supports revisiting your own analysis; repeating the remote query does not guarantee an identical collection. Missing records remain a limitation to report, not evidence that a discussion never happened.