Be bold means: "Go for it."

The Wikipedia community encourages users to be bold when updating the encyclopedia. We would like everyone to be bold and help make Wikipedia a better encyclopedia. Wikis like ours develop faster when everybody helps to fix problems, correct grammar, add facts, make sure wording is accurate, etc. How many times have you read something and thought—Why doesn't this page have correct spelling, proper grammar, or a better layout? Wikipedia not only lets you add and edit articles: it wants you to do it. This does require politeness, but it works. You'll see. Of course, others here will edit what you write. Do not take it personally! They, like all of us, just wish to make Wikipedia as good an encyclopedia as it can possibly be. Also, when you see a conflict in a talk page, do not be just a "mute spectator"; be bold and drop your opinion there!

Fix it yourself instead of just talking about it. If you notice an unambiguous error or problem that any reasonable person would recommend fixing, the best course of action may be to be bold and fix it yourself rather than bringing it to someone's attention in the form of a comment or complaint. In the time it takes to write about the problem, you could instead improve the encyclopedia.

Do not be upset if your bold edits get reverted. Francis Bacon, an early advocate of trial and error followed by observation to gain knowledge, once said: "Great boldness is seldom without some absurdity."[1] Instead of getting upset, read Wikipedia:Assume good faith and Wikipedia:Civility. After the reversion of your bold edit, you might want to be bold while communicating on the talk pages so as to not start an edit war; see Wikipedia:BOLD, revert, discuss cycle for more. On some of the less-prominent articles on Wikipedia that have a lower editing rate, your bold edit might not be responded to immediately. Think about it this way: if you don't find one of your edits being reverted now and then, perhaps you're not being bold enough.