[Moin-user] spam protection comparison

[Thomas Waldmann]

Currently moin can block spam (or abuse) by:
 * checking saved page content against a distributed regex list
 * checking ip against a hosts_deny list
 * checking some things that only dumb spam bots do, but not a normal
user with a browser
 * using surge protection: if some script tries to do too many edits in
some time unit, it will be locked out

If some spam happens, you can simply revert it (see info action).

For the wiki admin, there is even a despam action that makes mass revert
easy.

Of course you can also use ACLs to only allow editing for registered
users or even registered and verified users.