# The Hellofew blog

> Notes from building a LinkedIn outbound tool that sends less on purpose. Every number in them is read from the constants the sender obeys.

- [Why twenty a day](https://hellofew.com/blog/why-twenty-a-day.md) (2026-10-14) — The arithmetic behind the 20-a-day ceiling: what the category calls safe, what LinkedIn restricts for, and what a first month under the ramp actually adds up to.
- [What LinkedIn actually restricts for](https://hellofew.com/blog/what-linkedin-restricts-for.md) (2026-10-12) — LinkedIn has written down why it restricts invitations. It has not written down the number. Here is what is stated, what is reported, what is folklore, and what we do about each.
- [The accept-rate breaker](https://hellofew.com/blog/the-accept-rate-breaker.md) (2026-10-09) — LinkedIn restricts accounts whose invitations get ignored. The failure that causes it is invisible from the inside, so the product watches the same number LinkedIn does and stops first.
- [Read before you write](https://hellofew.com/blog/read-before-you-write.md) (2026-10-06) — A message built from a job title and a message built from something the person actually wrote, side by side, and why the product shows you which one it was working from.
- [The 150-connection floor, and why we refuse](https://hellofew.com/blog/the-150-connection-floor.md) (2026-10-02) — Below 150 connections the product sends nothing, and asks before taking your money. The reason is the pattern LinkedIn most reliably restricts.
- [One follow-up, never a sequence](https://hellofew.com/blog/one-follow-up-never-a-sequence.md) (2026-09-29) — Why there is exactly one follow-up per person, no setting to add more, and why a reply cancels everything queued for that person, checked twice, right up to the send.

Every post is also available as markdown: append `.md` to its path. The
limits every post refers to are at https://hellofew.com/limits, and what the product's own
accounts did under them is at https://hellofew.com/numbers.