iskeyword: append `+` and `@`?

[myrdd]

What do you think about appending the characters + (plus sign) and @ (at sign) to the iskeyword (isk) option?

:set iskeyword+=+,@-@

This way pressing * (star) on +project and @tag will include + and @ to the word search. Citing from :h iskeyword:

Keywords are used in searching and recognizing with many commands:
"w", "*", "[i", etc.  It is also used for "\k" in a pattern.

Do you think this is a good idea?