If you have to write who wrote a piece of code in a comment, you must not be using a decent version control system with a blame command. Which is a problem you should probably fix way before talking about comment styles.
1) Changing version control systems may be an unwinnable corporate political battle, while changing comment style may just be a team decision.
2) Not everyone who may need to understand or modify your code may have access to your repositories. I worked on a program where partner companies were provided source snapshots for developing their own algorithms but were not allowed access to our repositories.
Blame is useful in more elaborate context but... comments are instant :) And that is important.