Like i said, there was a really long number posted in a comment to an answer on this question. This is now overflowing out of its border thusly:
I am using IE8(work laptop) running Windows7.
This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
I don't think there is a valid use case / business case for 50-to-100-character long strings of non-whitespace in comments.
Not until the day comes when we need to tag things