For in-persons, no matter if you catch them on the fly or where there are scheduled signings and they want to try and have everyone on line get an autograph, a rushed signature is unavoidable. I'd rather have a rushed signature than no signature, particularly if I've invested a great deal of time and money to meet a person.

And a rushed signature or not at all is in some cases, a moot point. A lot of people sign with some form of their first initial and a scribble, then their last initial and a scribble versus a full name. And again, I'd rather have a signature than none at all.