[jerrymeola]

This is just a personal choice on your part. The plant will grow as it wants to and whether to rotate is an aesthetic choice on your part.

Since you asked I thought about my own orchids. I rotate all my plants (personal collection in a screen cage lanai, and realized I do not rotate my Phals which are on shelves next to the house in total shade.

As I thought about it I realized Phals do not have multiple bulbs and growth is consistently up wards from the center. The big leaves usually only have one or two ways that they will fit on the shelf limiting my options.

I have noticed I let the flowers grow horizontally out from the plant without staking the stem and I like it while many people do not.

If you do not rotate you will probably also get horizontal growth of the flower toward the sun. If you stake the flower stem, it also will keep the flower upright without rotating.