[pLog-svn] Are these plugins still relevant/useful?

[Oscar Renalias]

After incorporating bad-behavior into the core, there are some  
plugins that may have been rendered useless and therefore we should  
not spend working on them if that's the case. Can the author(s)  
comment on them?

akismet
dnsantismap
hiddeninput
validatetrackback

Or in other words, are we confident that bb can provide the same  
level of functionality?