Can a href command be used to post rather than get?

I don't think you can post a variable by means of a link. For example, doing <a href="myPage.cfm?form%2Etopic=123"> wont work. A link cannot create the form scope on the action page. Only tags like <form> and <cfhttp> can.

However, if you insist on using a link, Javascript could come in handy.

sender.cfm:

<a href="javascript: document.poster.submit()">Post it</a>
<cfform name="poster" action="myPage.cfm" format="HTML" method="POST">
<cfinput name="topic" type="Text" value="123">
</cfform>

myPage.cfm

<cfif isDefined("form.topic")>
form.topic: <cfoutput>#form.topic#</cfoutput>
</cfif>

You can do this but it's a bad idea.

• It breaks the web paradigm which confuses users and breaks down their trust.
  
• Visitors without javascript, or using mobile devices or voice readers will not be able to use your site.
  
• Search engines can destroy your data!
  
• Users with Firefox, etc., pre-fetch extensions can destroy your data!
  
• Do you really want users to be able to bookmark say, "Delete this entry" or "Add new junk to my site with one click and no thought"?
  

A better way is to keep forms for posting and alter the submit button(s)' appearance, if you wish, without hiding its/their purpose.