No, it's spam just like the person saying it's worthless and they should be treated just like the person saying it's worthless - unless, of course, they actually want to buy the account for 100m...then that's a totally different, probably mental issue.
Also, just because it's your opinion doesn't mean you have to state it, you know what I mean? I see a lot of stuff that I have opinions about in the market but don't post it because it's not the place. If it's spam or has something to do with the topic or if I'm questioned then I'll post. But just posting your opinions everywhere is pretty pointless, waste of your time (along with the person reading it) and just completely unwanted in most situations.