In some cases, as much as the law states that disclosure is required, I cannot really pass judgement on someone for not disclosing. Anonymous public hookups like cruising in the park, not asking questions, or in some cases, not even being able to identify the other person are such situations where I have a different view than the law around disclosure. Given the whole thing with the undetectable viral load, it would stand to reason that the law is a little out-dated.
Say you go to a bathhouse, and you see someone blindfolded in a sling in a dark corner, it's pretty obvious what they want, and that they do not care. In such a case, if you as the undetectable top decide to dive in raw, disclosure in my opinion shouldn't be necessary under those pretenses. The same holds true for the bottom. If they're in a sling and don't care, it is equally the responsibility of the other person to protect themselves if they're concerned with it, especially if the person in the sling is undetectable. Sadly though, the law is quite clear that disclosure still must occur.
All this being said though, it will be interesting to see how long it takes for the legal system to catch up with the facts that while there is no evidence that proves that it is impossible to transmit HIV with an undetectable viral load, but there sure is an overwhelming amount of evidence that statistically seems to indicate that an undetectable viral load is actually safer than sex with a condom. Condoms have been known to break, slide off, or otherwise occasionally fail in some way. If used properly and they do not slide off or break however, they are a proven method of preventing HIV as well. If you ask me, ZERO cases of infection from an undetectable viral load over the 10 - 14 years that the different studies were conducted sounds like a whole lot safer odds than a reasonable bet that infection is not possible, knowing that there is always a chance that the condom could break.
This is the kind of information that more people should know. There's a whole lot worse things than HIV that are possible that you can get a LOT easier than HIV itself at this day and age. I provide information like this as a reference for people to be able to make their own choices for themselves, knowing that they can make their decision proplerly informed with all the facts. Just because something is possible, doesn't necessarily mean that it's likely. 