Where it sits
The 1980s view was the opposite, and it was a view about phone lines rather than about people.
Tell it apart
| Aspect | Lurking | Shadowban |
|---|---|---|
| Chosen | Yes | No |
| You know | Yes | No |
| Reversible by you | Instantly | Not at all |
| Harmful | No | Debated |
Both produce an invisible user, but lurking is invisibility you CHOSE. A shadowban is invisibility done to you without telling you. The lurker knows; the shadowbanned user doesn't.
What it doesn't mean
The modern research view credits them with reducing repetition — searching archives instead of re-asking — spreading community content externally as 'active lurkers', and generating revenue by loading pages. Reading is treated as a legitimate form of participation.
Lurking is situational, not dispositional — around 84% of members participate selectively, lurking in some communities while posting in others. The same person is a lurker and a poster depending on the room.
What it really means
The overwhelming majority of any online community is reading and not posting. In open-source projects, estimates run 50 to 90% of members at any given time. The visible community — the people arguing in the comments — is a thin surface over a much larger silent one.
And for a long time, that silent majority was treated as parasitic.
The word explains why. Lurk comes from Middle English lurken, from Old Norse, meaning to lie in wait, and it has carried the sense of hiding with ill intent since the 14th century. When the term was applied to bulletin boards in the mid-1980s, it brought that menace with it — and there was a practical grievance attached. A BBS had a finite number of phone lines. A lurker occupied one and produced nothing. System operators frequently banned them outright.
That grievance was about infrastructure, not people, and it faded as bandwidth stopped being scarce - though it never quite went away: on a site with no advertising, the bandwidth cost of readers can still outrun what contributors put in. But the moral judgement outlived the scarcity by decades.
The current research view is close to the opposite. Lurkers reduce repetition — someone who searches the archive instead of asking again is doing the community a favour. Active lurkers carry content outward, sharing it in places the community doesn't reach. And they are, very often, learning the norms before they speak, which is why their eventual first post is usually better than an immediate one would have been.
One finding demolishes the idea that lurking is a personality. Around 84% of members participate selectively — lurking in some communities while posting in others. There is no such thing as a lurker. There are rooms you speak in and rooms you don't, and everyone has both.
Where it comes from
Middle English, from Old Norse — to lie in wait
The word has meant hiding or lying concealed since about 1300; the suggestion of evil intent is a later addition. The internet inherited the menace along with the word, which is why lurkers were treated as freeloaders long before anyone measured them.
- mid-1980s
The term enters bulletin-board culture. Because a lurker occupied a phone line without contributing, system operators often banned them outright.
- ongoing
Estimates put lurkers at 50–90% of members in open-source communities at any given time.
In real life
- 'I've been lurking on this forum for three years, but this is my first post — I finally have a question nobody's asked.'
- Before posting in the new community, she lurked for a fortnight to learn the in-jokes and which questions get you laughed at.
- The older, offline sense: a cat lurking under the hedge, waiting for a pigeon to land.
Questions
Q01How common is lurking?
In open-source projects, estimates run 50 to 90% of members at any given time. In most communities, silent readers are the overwhelming majority.
Q02Is it harmful to a community?
The current research view is close to the opposite of the old one, though it is not unanimous. Lurkers reduce repeat questions, carry content outward, and are usually learning the community's norms before they post. Some communities still count them as free-riders, and heavy lurking can cost a site more in bandwidth than it returns.
Q03Why the sinister word?
'Lurk' has meant hiding with ill intent since the 14th century. Early bulletin-board operators treated lurkers as resource thieves, because a lurker occupied a scarce phone line and gave nothing back.