Quick!  What do the following (made up) tweets have in common?

OK, the answer is that there are more hashtags than there is actual content!  Even in the third case when you have a lot of content (well, comparatively) you are still having an overkill of hastags.  I mean what's the use? It makes your tweet SO MUCH HARDER TO READ and it ultimately makes people less likely to follow you! Are you so concerned about the SEO of your tweets that you must put all those hashtags in? Just focus on content and people will not only retweet you and thus raise your cred, but you'll come up in searches because you'll have more content!  That's not hard to understand :)  Don't dilute your content with hashtags!

The other issue that's come up is overdoing it with the unfollowing and letting us know about it! Here is a sample:

Seriously? Is this an information sharing service (twitter I mean) or some sort of high school bitching-fest where you aren't going to talk to Joe Schmoe anymore because he didn't pass that paper not to Mike Schmoe last period? No one is required to follow you back if you follow them.  If you don't have content they want, why the heck would they ever follow you?

Has anyone written a twitter etiquette book? :) I think we are in need of one! STAT!:)