I had a conversation with Support on this last week and what happened is the editor is set to default for the any of the long text fields (which is only a few buttons). In 8.1.2 they added a web.config key <add key="CKEditor:DefaultToolbarSet" value="Full"/> where you can set it for the whole site to full or whatever setting. If you don't want to update to 8.1.2 then you'd have to go into each of the fields using the long text and set it to use the full vs. default.
The other suggestion was to modify the config.js file and make the default toolbar set look like the full toolbar set. I opted for the update to HF 2.