Automatic or utility transition classes

[codysherman]

Some utility classes such as .opacity-100 would seemingly almost always benefit from a transition being added to it. transition: opacity $animate-speed.

The problems occur with the fact that transitions don't add to each other but instead overrule the past rules:

transition: opacity 1s;
transition: transform 1s;

is not equivalent to
transition: opacity 1s, transform 1s;

Should a transition be automatically be added to certain utility classes like ,opacity-100, .opacity-0, and .rotate-180? Or perhaps there are transition utility classes like .transition-opacity?