I think tooltips for inlets would help a lot to improve
reusability, because it facilitates the usage of
lot. It also enhances readability and understandability
of patches, as the function of each inlet is
together with the inlet.
The only problem I can see is compatibility with resampling
method, which is implemented in the inlet code too.
(But could be moved to other places probably).
Backwards compatibility would be retained.