[JnRouvignac]

Thanks, I am reading many things about good code and I have never seen such advice.

"Good style", "best practice", all of this comes from an observation made by somebody who can justify it is good practice by some real evidence. If you were using if-elseif like a switch statement, then maybe there should be an else. If the if conditions are not related, then I don't see why there should necessarily be one.

Please enlighten me by pointing to the relevant online resources.