By putting a space after the # it breaks the hashtag and means their content won't come up when searching '#ad'. It has to be better for them to use this space as they're all at it.
Maybe properly using '#ad' with no space means content does worse in the insta algorithm too. Wish the ASAI would clamp down on this. Would it kill these wans to just actually do what they're supposed to do and do it properly?!
Edit to add: Lisa's Lust List
always breaks her hashtag too by putting a space between # and 'ad' so if she's doing it it most be financially motivated