Although there’s nothing inherently wrong with clichéd jokes, they often tend to be a self-judgement-caused alternative to genuine intimacy, which requires vulnerability.
So a partner/spouse, child or relative who is the subject of jokes tends to go without the shining light of heartfelt, expressed love and appreciation, and the energy and Life Force which that can allow.
A compliment is often what many people need and have a yearning desire for, above all else. Meeting that need can be a priceless gift beyond measure.