Need to clarify everything.
1. Lianhe Wanbao is a tabloid paper. The facts are often distorted and the video on Youtube shows that although fans did scream and such, they tried their best not to invade their privacy. (I am, however, guilty of chasing after SHINee's tour bus.)
2. At the SG concert last year, 2011, Taeyeon mentioned that the vacation to SG was a really pleasurable one. She said she enjoyed the weather and how the fans are just as passionate, and would love to be back.
3. SG's security is pretty tight. You'll get a fine or a Corrective Work Order for doing inappropriate things. Like spitting, or stalking someone endlessly, or basically doing horrible things. While I do mention that, please let me also say that anyone who comes to SG gets harassed. Sort of, anyway. The people here have no respect sometimes.
