There has been much said about how difficult anchors are to use, because of the esoteric syntax (see the comments in the Anchors page), especially as it relates to anchors linking to target pages different from the source page ... or, say, sending a colleague an email with a URL anchor link to your page.

The syntax often recommended by Atlassian tech writers is:
http://myconfluence.com/display/spacekey/pagename#pagename-anchorname

...but there are problems/bugs with this syntax:

• this breaks for pages that begin with a number (e.g., the very commonly used "2015-04-04 Meeting Notes" naming convention) ... in actuality, you need to use the "id-" prefix after the hash symbol, if the page name begins with a number
• the #pagename-anchorname part of that syntax actually needs to be #pagenameWithSpacesRemoved-anchorname; which is poorly documented, poorly understood by most users, and leaves the anchor link susceptible to broken links if the page is subsequently renamed
• the syntax is so convoluted, that anchors are unusable for our users, making anchors not a collaborative gadget tool, but a gadget only for developers or Confluence administrators.