Don't worry - it's not illegal :-)
Lurkers are people who regularly visit a forum but for some reason don't post. Every forum has them (apart from the odd ones which actually require you to post as a condition of membership) and, of course, there's nothing wrong with lurking!
However, as this is the year where we're focusing on the community aspects of Expat Focus we'd like to know what we can do to encourage those who want to post but for some reason decide not to. Do you think it's not worth posting because you won't get a reply? Are you worried about asking a question which seems too "obvious"? Perhaps you're concerned about registering an account because you think your details will be passed to a third party? Are you unhappy with the way the forums are moderated? Are people in the forums welcoming enough to new members? Are they knowledgeable?
Whatever the case please let us know what you think - all comments will be read and all are very welcome. Thank you!