I had it listed last year and the tattoo guy first offered then. After a enduring a number of tyre-kickers I lost motivation and withdrew the ad. I relisted it recently and the same guy made the same offer again.
I was also offered a Rockbass as a trade for it, an offer I also felt compelled to reluctantly decline 😂
The best part is I never invite trades. I’ve found even saying “no trades” will lead to a few “I know you said no trades but...” which are even more irritating. I don’t object to trade offers, as a general rule, but, as you say, inviting them can attract all kinds of silliness.