Why do you suspect this, despite your avowed lack of evidence bearing on the matter?
2 reasons:
1) Due to a general correlation between the views I have seen displayed here, and the views of those I know are supportive of minimum wage laws
2) Because a) I view this community as more-rational-than-average and b) I have not yet been exposed to many arguments against the minimum wage that were not either irrational, or based on completely different moral principles to those I have seen here.
Obviously, by posting this discussion post, I hope to discover whether my beliefs are inaccurate, by deliberating exposing myself to more rational arguments AGAINST the concept.
Interestingly, I had the exact opposite intuition as you. I saw basic economics as suggesting minimum wages were not a great idea, and I saw this community as being more versed in economics than average.
The concept of minimum wage is one I'm rather attached to. I have dozens of arguments for why it helps people, improves the world, etc. etc. I suspect this view is shared by most of this community, although I haven't seen any discussion of it.
I don't have much understanding of the harms that minimum wages cause; and at what level of minimum wage those harms become relevant (ie. a minimum wage that would not be a living wage even working 24 hours a day is unlikely to have any of the same problems that a minimum wage sufficient to buy an aircraft carrier an hour would have)
So what are the harms that such laws cause?