[quote=@Halo]
I just googled what they are and... ew. Just ew. Every example on wikipedia made me cringe. I get that they can perhaps be useful in exceedingly long sentences, but still. 
[/quote]

1. I agree 100% 

2. I disagree with some things you said, I don't think they're necessarily meant to be useful, they're just naturally occurring compensations for sentency fuck ups.