Hidden HTML comments are used to provide information and instructions to other editors. For example, one article begins like this:
The '''No Child Left Behind Act of 2001''' <!-- NOTE: Federal legislation is dated according to the date of
final legislative action, NOT from the date that the President signs them or the date that their provisions
go into effect. --> ('''NCLB''') is a United States [[Act of Congress]] that...Comments like these stop editors from making unwanted edits that will be reverted (in this instance, changing the accurate "2001" to the incorrect "2002"—a error that has basically stopped since I added that HTML comment several years ago).
In VisualEditor, this type of note, regardless of size, is represented as a small, single, light gray character, about the size of the letter M. It looks like a small white exclamation mark inside a gray dot. The content is not visible unless explicitly clicked on.
Multiple editors have expressed the opinion that something that is easier to see and obviously not part of the normal text, such as an orange dot, would be desirable. Please consider ways of differentiating the comment's icon from plain running text.
