[Rotating signs for rent or sale signs on mainland]

I have a new neighbor on mainland that divided and built up his piece of land with giant prim boxes (to be flat, to overlook my land, and I assume to have renters rezz a house on) and promptly put up 4 shiny rotating For Rent signs at about 40M (ish) above them.  I've had this same piece of land for over 10 years and I seem to remember there being a rule about the height, size and/or type of advertisement allowed.   Am I remembering incorrectly?  Anyone know?  I don't necessarily want to file a ticket, I'd just like the correct info so that if there is a rule I could contact said neighbor and present it to him (while kindly asking him to remove them).  He's kind of a newbie land baron and got a little touchy when I asked if he needed any help texturing the boxes (because, you know....massive repeats).

[Tell about you in 1 line.]

I spend way too much on hair, am constantly working on new projects and will start up a conversation with anybody and everybody. 

[Ruthed Solutions]

The character test thingie works for me too, but only if I do it on the original Second Life viewer, not on Phoenix.  So I switch viewers, do the test and then go back to Phoenix.  It seems to happen to me everys several months or so.