I'm a good copy-paste code-diver developer, and I need visitors to be able to clear their comment cookies after having visited a website I'm working on, wearereadytohelp.org.
This site shows a different layout depending on the user having ever commented on the site or not (kind of play once feature)
I'd like other users see that layout, making wordpress to "forget" the previous commenter, giving them an option like "not you?".
I'm not talking about registered user, but client-remembered commenter.
I'm sure there's a function for that, but I couldn't find it.