we do not share your data with anyone and there are many ways to control the visibility and storage life of your data here.
but the internet is a public space and you should always assume your data could be compromised.
be smart with your password, use tor or a vpn, and use pgp for sensitive communications.
Effects are different in the brain, LSD triggers a lot of different synapses, meaning parts of the brain that don't normally make connections do! I recommend trying micro-dosing mushrooms (like .3gram in the morning), you're never off your melon but it makes you think in a slightly altered way.
Cannabis is less of a 8 hour bender than LSD, I find the effects normally wear off in a couple of hours and imo is far less hard work ;)
As far as effect goes I would have to say the biggest difference has to be emotions. While both of the substances open up "cognitive" connections, lsd seems to reach your deeper psychology. No matter how open a person is to their emotions there are always feelings that get repressed, its just how the brain works. It's like there’s always something there and LSD is going to bring it to the surface. This is why psychologists have done so much work with the substance.
Many people experience this with edibles as well, I think what you're correctly pointing out here is a liver based process vs lungs more than LSD vs cannabis. That said I think LSD is a bigger deal for the liver too, like it's saying wtf?