The site's wording leaves the implied constant in $\gg N$ unquantified, and the question changes with it. The site's source, Erdős and Graham's monograph [ErGr80], p. 54, asks Folkman's question for a nondecreasing sequence with $s_n<cn$ "for some $c$ and all $n$", and Folkman's own closing question ([Fo66], p. 655) is whether $a_n\le Mn$ for all $n$ forces subcompleteness; in both the constant may depend on the sequence. The site labels the problem PROVED and its commentary says that "the original question was answered by Szemerédi and Vu [SzVu06] (who proved that the answer is yes)"; its thread has no comments. The curator's reading is therefore the statement Szemerédi and Vu prove, which they state as Folkman's conjecture (Conjecture 6.1, proved as Theorem 6.3): there is a constant $C$ such that every infinite nondecreasing sequence of positive integers with $A(n)\ge Cn$ for all sufficiently large $n$ is subcomplete, where $A(n)$ counts the terms at most $n$ with multiplicity. The corrected Statement is that form: it asks for the constant before $A$ and replaces "$\gg N$ for all $N$" by "$\ge CN$ for all sufficiently large $N$". The two changes go together. With one constant required for every $N$ the question is trivial: $C\ge1$ gives $A(N)\ge N$ for every $N$, so $a_n\le n$ and $a_1=1$, and Brown's criterion then makes every natural number a finite subset sum. The answer under each reading: the corrected Statement is proved by Theorem 6.3, whose constant is one absolute constant that the proof takes large (it needs $a_j\le j/C\le j/5$ and a lemma that holds for $C$ sufficiently large); the question as Folkman and Erdős and Graham printed it, with a constant depending on $A$, is answered yes only for multisets with at least $CN$ terms up to $N$ for all large $N$, that is for $M\le1/C$ in Folkman's form, and is open for smaller constants as far as the cited sources show; the universal-constant form for every $N$ is trivially true. Boris Alexeev's lean-proofs file Erdos343.lean (pinned commit of 2026-08-17; formal authors the AI systems Codex and GPT-5.6 Sol) proves that trivial form with $C=1$ by Brown's criterion and says so; it is credited here and counts for nothing. Collin Yuanjie Ren's submission jsp-000285-cyr (pinned commit of 2026-09-16), which the community database credits for the site's "(LEAN)" qualification, states the corrected Statement as erdos_343_eventual with the explicit constant $C=512F^2$, $F=200000\cdot200^{49}$; this corpus has not built it, so it gives no formalized evidence. Unread: Section 6 of [ErGr80] beyond p. 54.