Drepper's caustic style aside, his point ultimately was that truncation is still a problem. Whether or not you think glibc should include strlcat, this is an important point to understand.
Note that you can mechanically translate strcat(dst, src) to strlcat(dst, src, SIZE_MAX) with no loss of functionality or change in behavior. No worries about truncation, either. Exactly the same thing.
Now, if reading a piece of code that does strlcat(dst, src, SIZE_MAX) would make you feel uncomfortable, the question is how should you feel reading code that uses strcat?
