When posting something to be rated, always remember that if you cannot handle criticism, then maybe you should not post your work. People giving out ratings should give constructive criticism, and always stay out of rants and disputes over ratings.
This is one way how you can give out ratings:
1/10 - Very, very poor
2/10 - Very poor
3/10 - Poor
4/10 - Mundane
5/10 - Average, and nothing particularly new or exciting.
6/10 - Decent (ish), but again nothing new or exciting.
7/10 - Good
8/10 - Impressive, should be given quite rarely and should be quite hard to get.
9/10 - Excellent, should be given out rarely, and is very hard to get.
10/10 - Outstanding, this rating should be very rare and extremely hard to get.
And finally, remember the golden rule - always post your work
here, and not make a new thread about it.