implications of subkeys?

[JanuszA.Urbanowicz]

Len Sassaman wrote/napisa=B3[a]/schrieb:
> This isn't actually needed, however, due to a trick in the PGP trust
> model that isn't too widely known:
>=20
> If a key A bearing a given user-id signs a key B with an identicial
> user-id (and the signature is made on that identical user id) then trust
> for key B is calculated as though all the signatures for this shared
> user-id on key A were made on key B. This was introduced around the time
> of PGP 3.0, to prevent an RSA/DSA divide in the web of trust.

I do not want to seem to attack PGP developers et al, but why the hell this
(very important IMO) feature wasn't publicized then?

Alex
--=20
C _-=3D-_ H| Janusz A. Urbanowicz | ALEX3-RIPE | SF-F Framling |         | =
  *  =09
 ; (_O : +-------------------------------------------------------------+ --=
+~|=09
 ! &~) ? | P=B3yn=B1=E6 chc=EA na Wsch=F3d, za Suez, gdzie jest dobrem ka=
=BFde z=B3o | l_|/=09
A ~-=3D-~ O| Gdzie przykaza=F1 brak dziesi=EAciu, a pi=E6 mo=BFna a=BF po d=
no;     |   |  =20