FEATURE: when post is too short, suggest using the like button instead

app/assets/javascripts/discourse/templates/popup_input_tip.hbs

@@ -1,2 +1,2 @@
 <span class="close"><i class="fa fa-times-circle"></i></span>
-{{view.validation.reason}}
+{{{view.validation.reason}}}

app/assets/javascripts/discourse/views/composer.js.es6

@@ -573,6 +573,10 @@ const ComposerView = Discourse.View.extend(Ember.Evented, {
       reason = I18n.t('composer.error.post_missing');
     } else if( missingChars > 0 ) {
       reason = I18n.t('composer.error.post_length', {min: this.get('model.minimumPostLength')});
+      let tl = Discourse.User.currentProp("trust_level");
+      if (tl === 0 || tl === 1) {
+        reason += "<br/>" + I18n.t('composer.error.try_like');
+      }
     }
 
     if( reason ) {

config/locales/client.en.yml

@@ -738,6 +738,7 @@ en:
         title_too_long: "Title can't be more than {{max}} characters"
         post_missing: "Post can't be empty"
         post_length: "Post must be at least {{min}} characters"
+        try_like: 'Have you tried the <i class="fa fa-heart"></i> button?'
         category_missing: "You must choose a category"
 
       save_edit: "Save Edit"