I want to know that if I use signature keyword bold or italic or colored than what is its effect? Can it help in getting more back links?
Does it means more links or same number of links? The answer will answer your query
Make it has simple text that will do.
I think it doesn't effect when you bold, italic or colored as per search engine view. But It can help to attract people to your website through signature.
no it doesn't matter keep plan link on signature