It's none of a prossie's business if you are on UKP and may place you in a difficult position.
Of course, if you happen to be a fluffy cunt that cares only about himself and his dear, wonderful, leeching, pimped out, non-tax-paying, lazy, disingenuous, 2-bit, skanky, unpresentable, gold-digging, lowlife, fake-identitied, slot-machine whores, grovelling in the hope of a nice word from his mirage of a perfect princess, the most beautiful girl he's ever scene, perfect in every way, about whom it would be ungentlemanly to give intimate details, basically a traitor to other punters, well that sort of person will rush home to pen some trite soft porn about his goddess's 10/10 charms (or maybe 11, maybe as high as he can count) then such a revolting specimen will probably flaunt his membership, tell her yo 'look out' for his 'review' and feel content that he, complete fucking scumbag that he is, is so much better and cleverer than other punters and gets such superior service from the most beautiful women that others can only dream about. One piece of slime on UKP, a very pleasant chap in every other way when posting, actually boasted how his "technique" of promising a good review would guarantee him first class service. One might suspect that any WGs with a sense of decency would tell him to go fuck himself, but most would tolerate it. Seems he didn't technically break any rules but maybe Admin has kicked him off for being a complete cunt.
Telling prostitutes that you use UKP is like inviting a potentially scheming bag lady into the gents toilets while your mates have their pants down and promising to say nice things even when she goes through their jacket pockets. Such creatures in my opinion should stay on ES or AW when typing, and not besmirch thr hard work and integrity that has gone into UKP.