I agree but that ship sailed a decade ago. There's no additional risk with the new bill, it's more of the same. If there are concerns about liability because of this new bill then there should be concerns about liability already.
I sympathise with the OP because at some point everyone becomes too old to deal with the headaches of running a community. I have no opposition to their choice to shut down the forum. I just don't believe liability as a result of the new bill is the reason.