Here's a useful link on Batch Renaming clips.
Although it wasn't completely clear to me when I first attempted it.
If you're going to batch rename clips, make sure you first choose Edit ...
Then pick the nameing scheme you want and edit it the way you want it.
Then select the clips and choose the renaming scheme you just edited.
I'm not certain why blimpmedia suggests you don't rename your clips. Perhaps blimpmedia will elaborate. But I can see how chaning clip names can be confusing.
You should know that you are not chaning the name of the clip as it appears in Finder. Just how it appears in FCP X.
Perhaps more confusing is how the name change feature works in FCP X. When you change the name of clip in FCP X, it only changes the clips name from that point forward. For example, if you put a clip on the Timeline and then change the name of the clip in the Event Browswer, the name of the clip in the Timeline won't change. It will still have the orignal clip name. If you select the clip in the Timeline and choose Reveal in Event Browser ... it will point you to the cllip which will have the new changed name. Some poeple feel this is a feature. It's not a bug. I personally don't care for this method. If I want to change the name of a clip, it should change the clip's name globablly. Or at least have the option to do one or the other.
So perhaps blimpmedia is referring to some of the issues and therefore why you shouldn't rename clips.
I'll do it myself (knowing some of these issues) when I wind up with media that has cryptic names. But I do it berfore I edit with any of the clips and I know the names I've created are not the names of the actual media.