Hidden option (bug? secret?)

On the NW pillar of the ge, when i right click it i get a "go to grave" option
what could this possibly be?
its strange because i can only right click that spot sometimes. it doesnt show up all the time

its not only me because i google searched it and found only 2 searches on the RS forums
http://forum.runescape.com/forums.ws?14,15,910,64088196
http://forum.runescape.com/forums.ws?15,16,377,64087265,goto,17

 

I saw this earlier when i right clicked on a boat in ape atoll.

 

I believe it's the gravestone update recently. It could be a bug.

 

I've seen it in runespan.

 

i seen it in varrock maybe jagex just stuffed up?

 

Probably a bug, seen it also at runespan.

 

Seen it happen at my gravestone, said that + the other options.