There is no such thing. Maybe in some small circles there is a prevailing private opinion about such things but it certainly isn't official or wide spread. You have to be careful not to ascribe such notions as being widely held because they are not. Everyone has an opinion even high Church...
Mormons believe in the eternal progression of mankind. That means we are always striving to improve ourselves in our minds, bodies and spirits. Anything that inhibits that is ungodly and should be avoided. This is theory anyway. Actual practice is something else. I guess I can say failure to...