Description:

"load" eliminates the need to know whether you are trying to require
either a file or a module.

If you consult "perldoc -f require" you will see that "require" will
behave differently when given a bareword or a string.

In the case of a string, "require" assumes you are wanting to load a
file. But in the case of a bareword, it assumes you mean a module.

This gives nasty overhead when you are trying to dynamically require
modules at runtime, since you will need to change the module notation
("Acme::Comment") to a file notation fitting the particular platform
you are on.

"load" elimates the need for this overhead and will just DWYM.