r/explainlikeimfive Subreddit Stats and Best Posting Times

What to Post and How to Rank on r/explainlikeimfive

Best Topics & Content Types

r/explainlikeimfive thrives on questions about complex concepts that need simplification for complete beginners. Scientific phenomena, economic principles, technological processes, and legal concepts perform exceptionally well when framed as genuine knowledge gaps rather than hypothetical scenarios. The subreddit strictly requires text-based question posts following the "ELI5: [question]" format—links, images, and how-to guides violate Rule 2. Successful submissions focus on extremely narrow topics with straightforward factual answers, like "If there is no cellphone signal, how does 'emergency calls only' mode work?" rather than broad inquiries. Each post must include accurate category flair (biology, physics, economics etc.) which the community relies on for organization. The subreddit's 20 million subscribers particularly engage with practical everyday mysteries that affect ordinary life, but only when questions avoid current events, politics, religion, or fictional scenarios as explicitly prohibited in their detailed rules.

Writing Style & Tone

The tone must mirror explaining concepts to a complete novice without condescension—simple vocabulary, short sentences, and concrete analogies are essential. Reddit's Rule 4 mandates explanations for laypeople, meaning zero jargon is acceptable unless immediately defined in plain terms. Successful contributors adopt a patient, teacher-like voice that avoids both academic stiffness and forced humor. While not strictly formal, posts must maintain objectivity per Rule 5, eliminating personal opinions or speculative language. The most upvoted responses often use vivid real-world comparisons ("Imagine atoms like Lego blocks...") rather than abstract descriptions. Crucially, the style shouldn't literally mimic explaining to a five-year-old (as clarified in Wukihow's analysis), but rather translate complexity into universally accessible terms that any adult could grasp immediately.

What Gets Upvoted

Highly successful posts demonstrate genuine curiosity about non-obvious mechanisms behind everyday phenomena, strictly adhering to the subreddit's mission of objective knowledge sharing. Questions that reveal surprising gaps in common understanding—like why the body burns calories differently during rest versus exercise—garner significant engagement when they avoid flawed premises. The community rewards precision in question framing; vague queries get removed while specific, researchable questions thrive. Top posts consistently follow all submission rules: civil tone (Rule 1), narrow scope, and demonstrable need for simplification. Crucially, posts that spark "aha!" moments through clear, step-by-step reasoning—rather than quick answers—generate sustained discussion, as Rule 3 requires top-level comments to provide written explanations rather than one-liners or jokes.

What to Avoid

The subreddit maintains strict prohibitions that differ from general Reddit norms. Never post political/religious questions, current events, or hypotheticals—they're automatically removed per Rule 2. Avoid questions with built-in assumptions (e.g., "Why is gravity wrong?"), as flawed premises violate Rule 2. Subjective topics like "ELI5: Why is art valuable?" get removed for lacking objective answers (Rule 5), while gaming/fiction questions breach community guidelines. Crucially, don't repost popular questions—Rule 7 mandates searching first, and duplicate posts get nuked. Even well-intentioned violations like "ELI5 how to change a tire" fail because Rule 2 bans instructions/how-tos. The moderation is notably strict about Rule 8 ("Don't Guess"), so never answer beyond your expertise. Posts about Reddit itself or attempts to evade the moderation bot (Rule 9) face immediate removal.

Posting Tips

Always search thoroughly before posting to avoid duplicates—this community aggressively enforces Rule 7. Structure titles precisely as "ELI5: [clear, specific question]" without embellishment, as deviations get removed. Apply accurate category flair immediately; misflaired posts often get ignored. Post weekday afternoons (Eastern Time) when the community is most active based on traffic patterns. Never engage in speculation—admit knowledge gaps rather than violating Rule 8. When commenting on others' posts, provide complete written explanations per Rule 3 instead of fragmented replies. Crucially, resist adding "as a [professional]" credentials, as Rule 5 prioritizes objective simplicity over authority claims. Monitor your post closely for the first hour to clarify misunderstandings civilly (Rule 1), but never argue with removal notices—r/explainlikeimfive's moderators enforce their detailed rules consistently, as evidenced by their comprehensive public guidelines [reddit.com](https://www.reddit.com/r/explainlikeimfive/wiki/detailed_rules/).