It has been a while since I was on this board! I don't recognize most of the ladies here anymore, but still wanted to say hello!

I was just wondering if it is a bad taste to buy gifts with my existing store credit. I still have couple hundreds dollars worth of BBB store credit/gift cards from my wedding last year, and one of my friends is getting married. Would it be considered a poor etiquette to buy her registry items with my store credit? I feel like it's still $$, but would this matter?