Your sign-up form is a weapon

Bots turned your “Sign Up” into a spam cannon — now users feud over fixes

TLDR: Suga caught a “subscription bombing” scam: bots used real emails to trigger floods of sign-up and reset messages, hiding real fraud in the noise. Commenters split between cutting welcome emails, using simple honeypots, and rejecting Cloudflare-style gatekeeping—turning a quiet security fix into a debate about the web’s soul.

The plot twist nobody asked for: Suga found bots turning its sign-up form into an inbox flood machine. Think nonsense names like “PfVQXvY…”, real email addresses, and a flurry of messages: verify, welcome, password reset — all in under a minute. The goal? Bury real bank alerts under a blizzard of “Welcome!” emails while crooks do their thing elsewhere. Cue the comments section going full courtroom drama.

Fans of clarity cheered the breakdown — “Finally, someone explains how a couple emails can mask real fraud,” praised one reader. But the real brawl is over fixes. One camp says: stop the fluff — no welcome emails until people actually confirm. Another camp throws elbows at corporate gatekeepers: Cloudflare’s Turnstile? Critics say it’s more “Big Gate” than guardian, arguing we’re centralizing the web and annoying legit users in the process. Meanwhile, the old-school crowd flexed: “Just use a honeypot,” a sneaky fake field that only bots fill — no mega-vendor needed.

Amid the hot takes, a chilling personal story landed: a reader still gets “abandoned cart” emails after being hit and had to cancel a credit card within minutes. Others cackled at the bot’s “human” typing — painfully slow, weirdly random — like the world’s slowest intern on 1x speed. Underneath the jokes, one message is loud: every sign-up form can be weaponized, and the web is split between adding more locks and keeping the front door friendly.

Key Points

  • Suga detected a pattern of inactive new accounts with garbage names but real email addresses.
  • The activity matched a subscription bombing attack aiming to flood victims’ inboxes.
  • Bots signed up and then quickly triggered password resets, sending victims three emails within a minute.
  • PostHog data showed unusual forgot-password traffic; Resend logs confirmed email deliveries.
  • The attack was low-rate and globally distributed, with uniform, human-mimicking typing and navigation delays.

Hottest takes

As a user, I would prefer no welcome email at all — cuu508
works until it doesn't, and in the meantime, helps centralize power around a single legal entitiy while pissing legitimate users off — m132
Basically all attacks are remediated by this — mads_quist
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