Why are Likes missing from Forum replies?

Adding back likes would be a relatively simple widget change using $core_v2_ui.Like(). See the comments widgets for examples. Likes were removed be default from forum replies when the voting mechanism was added, since they fulfill very similar purposes.

Thanks for the quick reply Steven.  I will take a look at the comments widget.

I have been looking at the code and found only one place in the comments list widget under common-rendered-reply-body.vm just under the votes.

<li class="navigation-list-item">
	#if ($accessingUserIsRegistered)
		#set ($likeFormat = '{toggle} {count}')
	#else
		#set ($likeFormat = '{count}')
	#end
	$core_v2_ui.Like($comment.CommentId, $comment.CommentContentTypeId, "%{ Format = $likeFormat, IncludeTip = 'true' }")
</li>				

I took this and added to similar section in Forums - Thread under same vm, but not sure how to configure it.  I have tried th following, but it has not impact.

<li class="navigation-list-item">
    #if ($accessingUserIsRegistered)
    	#set ($likeFormat = '{toggle} {count}')
	#else
		#set ($likeFormat = '{count}')
	#end
 	$core_v2_ui.Like($forumReply.Id, $forumReply.ContentTypeId, "%{ Format = $likeFormat, IncludeTip = 'true' }")
</li>	

Not sure why it is not working.  Did I miss something?

Try using $forumReply.ContentId instead of $forumReply.Id.

Here are the final changes made to common-rendered-reply-body.vm with the Forum Thread widget.

		## extra link to support showing the custom 'more' link
		#if ($isRegistered)
		    ## Modified to accommodate adding back likes
		    ## Changed to 2 from 1
		    #set ($maxLinks = $maxLinks + 2)
		#end

		#set ($replyActionsId = $core_v2_widget.UniqueId("replyActions-${forumReply.ContentId}"))

		<div class="navigation-list ui-links" data-maxlinks="$maxLinks" data-direction="horizontal">
			<ul>
				## Quality Votes
				#if (!$forumReply.IsDeleted)
					<li class="navigation-list-item vote">
						<span class="votes">
							#set ($currentVotes = $forumReply.QualityYesVotes)
							#set ($currentVotes = $currentVotes - $forumReply.QualityNoVotes)
							#set ($forumReplyVote = false)

							#if ($accessingUserIsRegistered)
								#set ($forumReplyVote = $core_v2_forumReplyVote.Get($forumReply.Id, "%{ VoteType = 'Quality' }"))
							#end

							#if ($accessingUserIsRegistered)
								<a href="#" data-tip="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('vote_up'))"class="ui-tip vote up #if ($forumReplyVote && $forumReplyVote.Value) selected #end" data-messagename="ui.replies.vote.message" data-replyid="$forumReply.Id" data-value="true">$core_v2_language.GetResource('up')</a>
							#else
								<a href="#" data-tip="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('vote_up'))" class="ui-tip vote up" data-messagename="telligent.evolution.widgets.thread.login" data-replyurl="$core_v2_encoding.HtmlAttributeEncode($forumReply.Url)">$core_v2_language.GetResource('up')</a>
							#end

							<span class="vote current ui-tip" data-tip="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('view_voters'))" data-replyid="$forumReply.Id">$currentVotes.ToString("+0;-0;0")</span>

							#if ($accessingUserIsRegistered)
								<a href="#" data-tip="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('vote_down'))" class="ui-tip vote down #if ($forumReplyVote && !$forumReplyVote.Value) selected #end" data-messagename="ui.replies.vote.message" data-replyid="$forumReply.Id" data-value="false">$core_v2_language.GetResource('down')</a>
							#else
								<a href="#" data-tip="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('vote_down'))" class="ui-tip vote down" data-messagename="telligent.evolution.widgets.thread.login" data-replyurl="$core_v2_encoding.HtmlAttributeEncode($forumReply.Url)">$core_v2_language.GetResource('down')</a>
							#end
						</span>
					</li>
				#end
				## Reply Link
				#if ($hasReply)
					<li class="navigation-list-item">
						#if ($hasReplyPermission)
							<a href="#" class="internal-link new-reply"
								data-label-reply="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('reply'))"
								data-label-cancel="$core_v2_encoding.HtmlAttributeEncode($core_v2_language.GetResource('cancel'))"
								>$core_v2_language.GetResource('reply')</a>
						#elseif ($userMustLogin)
							<a href="#" class="primary internal-link login" data-messagename="telligent.evolution.widgets.thread.login" data-replyurl="$core_v2_encoding.HtmlAttributeEncode($forumReply.Url)">$core_v2_language.GetResource('reply')</a>
						#end
					</li>
					## Add Likes Back
					<li class="navigation-list-item">
					    #if ($accessingUserIsRegistered)
					    	#set ($likeFormat = '{toggle} {count}')
				    	#else
				    		#set ($likeFormat = '{count}')
				    	#end
				     	$core_v2_ui.Like($forumReply.ContentId, $forumReply.GlobalContentTypeId, "%{ Format = $likeFormat, IncludeTip = 'true' }")
    				</li>	
    				## End Add Likes Back
				#end

Had to use .ContentId and GlobalContentTypeId with $core_v2_ui.Like entry to get it to show the item, and also added after the reply section (spacing issue with Reply button if added before reply).