What I learned:
The "Anki death spiral" is the single most-named reason people quit - The failure pattern is almost always the same story, not a lack of willpower: someone starts hot with 50+ new cards a day, misses a day or two, comes back to 200+ reviews due, feels punished, skips again, and within a few weeks is staring at a thousand-card backlog they'll never clear. The r/languagelearning thread "Alternative to Anki?" (49 comments) is full of this - people don't hate the algorithm, they drowned in their own new-card enthusiasm. The consistent diagnosis across Student Doctor Network and the LessWrong "opinionated guide": Anki rewards consistency, not heroics, and the death spiral is a scheduling-math problem people create on day one.
"Ease hell" was a real structural trap - and FSRS has largely killed it - Under the old SM-2 algorithm, cards you struggled with early got permanently punished: a fixed ease multiplier dragged them toward 1.3, so the same leeches kept resurfacing forever and your review pile ballooned. This was a genuine reason mature decks became unbearable, not just user error. FSRS-6 (now the default) replaces the multiplier with a difficulty parameter that reverts toward the mean over time, so an early struggle doesn't pollute the schedule permanently. Per the fsrs4anki benchmarks, default FSRS beats SM-2 for ~99.5% of users across ~10,000 tested decks, typically cutting reviews 20-30% at the same retention. The people who quit "because of the workload" in 2023 were often quitting ease hell specifically.
The over-optimization trap is the new 2026 failure mode - Ironically, FSRS created a fresh way to waste time: endlessly fiddling with parameters, re-optimizing weekly, and chasing the "perfect" desired-retention number instead of just doing reviews. The 2026 low-stress guides all repeat the same warning - optimize once you have a few weeks of data, set desired retention around 0.85-0.90, then leave it alone. There's also a distinctly 2026 twist: @mynamebedan reports "letting claude code loose on my anki db... we cleaned up a shit ton of leeches automatically" - people are now using coding agents to bulk-diagnose and prune bad cards rather than grinding through them one Again-press at a time.
What the long-haul users actually do differently - It comes down to a few boring habits, not motivation. Cap new cards low (20/day is the repeated magic number), always clear reviews before adding new cards, and treat the leech tag as a signal to rewrite the card, not to power through it. The recurring card-design rule is the Minimum Information Principle: one fact per card, short and specific, no hundred-line cloze monsters. The r/Anki "Why I love anki" post (316 upvotes) captures the survivor's mindset - people who stick around stopped treating a daily session as a mountain and made it a small, non-negotiable habit that fits a bad day, not just a good one.
KEY PATTERNS from the research: 1. The death spiral is scheduling math, not weakness - 50 new/day + one skipped day = a backlog that discourages you into quitting, per r/languagelearning 2. FSRS structurally solved "ease hell" - mean-reverting difficulty means early struggles no longer poison a card forever, per fsrs4anki 3. Over-optimizing FSRS parameters is the new procrastination - set it once, then stop touching it, per iatrox's 2026 guide 4. Reviews before new cards is the survival rule - new cards are future debt; reviews are where memory is actually built, per Student Doctor Network 5. A leech is a broken card, not a hard fact - long-term users rewrite via the Minimum Information Principle instead of grinding, per LessWrong