so it seems my theory that its just a dead drop site for mail, was correct. 340 lemon is the address of the company called "virtualpostmail" who act as a mail forwarding service
http://www.corporationwiki.com/California/Walnut/obtr-llc/138556560.aspxThe same guy owns...
http://en.wikipedia.org/wiki/OffbeatrOffbeatr is a US website for crowdfunding pornography. It has been described as “Kickstarter for porn”. Project creators post pitches for new projects. Projects may be media, events or objects. The user community gets to vote on projects. If a project gets enough votes, it’s open for funding. If a project meets its goal, then the project creator gets the funds. Users must be 18 years of age or older. Project creators can also sell previously created material. Projects must be based in either United States, United Kingdom, Germany, Canada, France, Australia, or New Zealand.
The commonly available platforms by Amazon payment and PayPal do not allow payment for pornography. Offbeatr was launched in August 2012 by the Los Angeles based start-up Extra Lunch Money. As of August 2012 it had a team of five and was self-funded.
As of February 14, 2013, over $70,000 in pledges had been funded in seven projects, mostly relating to furry fandom.
I guess that last sentence sums up why so many Bitcoiners flock to using 340 S Lemon, Walnut, CA, as their mailing address oppose to their local USPS-esque services. Hell, even Bitcoin Magazine uses it, so it has to be the hip thing to do.