Two insurance brokerages compete for the same handful of regional clients, and only one of them has a Wikipedia article. The other tracked it down within a week of losing a pitch, built a folder of screenshots — the infobox, the reference list, the category tags — and sent it over with one question: why does the competitor get a page and we don't.
Wikipedia's editors have a name for that folder before anyone even opens it: WP:OTHERSTUFFEXISTS, an essay written for exactly this move. The encyclopedia holds several million English-language articles, and nobody has reviewed most of them against today's sourcing standards. An article surviving untouched proves only that no one has opened a discussion about it yet — a fact about attention, not about the sources underneath it.
The comparison cuts both ways more often than the folder's author expects. A reviewer who follows the link the other direction sometimes finds a page propped up on a funding announcement and a staff bio copied from the company site, tags it, and a second discussion opens the same week the first one closes. Citing a weak article as precedent can cost two articles instead of saving one.
The essay leaves one narrow door open. When a guideline's wording genuinely splits opinion, a closer weighing how several well-sourced, previously tested articles have handled comparable facts can treat that pattern as evidence of how the community reads its own rule. One article nobody has scrutinized does not supply that pattern; a dozen that each survived their own discussion might.
The existence of other similar pages is not usually, on its own, a good argument in a deletion discussion.
When that folder reaches us, the first thing we open is the competitor's reference list, before our own draft, and we read it the way a reviewer would: count the outlets, note which had a reason to write something other than a rewrite of a press release, check the dates against the company's own funding and product announcements.
Some folders turn out to hold a genuine case — three or four outlets that would have covered the firm with or without a Wikipedia page to point to. The comparison becomes useful then, not as proof but as a map of where similar coverage might exist for the firm asking the question. Most folders turn out to hold exactly the fragile record we would otherwise have had to build from nothing, and that answers the original question more honestly than any policy citation could: the page across the street had never been proof. It was a subject nobody had gotten around to checking yet.