I have these on my white jade. I'm just letting them grow as large as they'll get at the expense of the pineapple, in hopes that I'll get 3 more pineapples sooner. I'm choosing more larger plants over fruit since I don't have a whole lot of plants yet.
If you're asking how to take them off, I see people recommend cutting them off. I think it could avoid tearing the stem. I don't have personal experience with it. I was originally going to twist them off like pineapple tops.