only my two cents, about x64 builds on the addon site.
1)Put this plugins in the normal structure, like
Addons: Plugins: Messaging: Enhancements: SmileyAdd x64
2)Put this plugins in a x64 folder, like
Addons: Plugins: 64-bit: SmileyAdd x64
some reasons, why I rather prefer 2)
a) There are 4000 files on the addon site, it would be easier to find this x64 build, if I search for it.
b) 3950 from this 4000 will never get a 64-bit Version, the overall amount of this 64 bit plugins will be very limited, in the future too. Therefore I don't think that this builds must sorted by category now. (now=maybe in 3-5 years ;) )
c) "WTF? Why it not work?" I don't think that "x64" in the plugin title is enough for some kind of users. (There are a lot of users who put ANSI plugins in a UNICODE miranda installation, or vice versa, even though the file have another title)