Different journals have different standards regarding author names - some mention only the first name (i.e. "William Webb"), some mention also an initial of the middle name ("William A. Webb"), some mention only initials ("W. A. Webb"), etc.
So, when I copy BibTeX records of papers to my bibliography manager, the names are copied in different styles, and also appear in different styles in my bibliographic listing.
My question is: is this a problem? Should I go over all my bibliography, each time I write a paper, and make sure all names have the same format?