But there aren’t many “visible” differences between trust level users. You won’t “see” much through your goggles unless you have heavily customized your trust level. These are mostly usage restrictions.
As a trust level 3, you’ll be able to edit title/categories from others’ topics, stuff like this, but that doesn’t seem that interesting to “see” until you know, and there is little to know. You could have a secondary account and change its trust level before impersonating it, it’s a matter of a few seconds. This is what I do.
Have you some valuable examples of what you’d be interested in seeing through these “goggles”? 