If you like the tone you're getting, then it's not a bad habit. Strumming in different spots on a string will give you different tones. But where you strum certain strings could be part of your "voice" when playing.
What is this "strumming" of which you speak?
Fender Squier Affinity HSS Stratocaster "Kelli"[br]Epiphone Les Paul Special-II LE "Callie"[br]Rogue RA-090 Concert Cutaway Acoustic-Electric Guitar "Theresa"
