Version: 0.11.1 (using KDE 3.5.1 Level "a" , SUSE 9.2 UNSUPPORTED) Compiler: gcc version 3.3.4 (pre 3.3.5 20040809) OS: Linux (i686) release 2.6.8-24.20-default in my icq settings, the option "ask for authorization before people can add my to their buddy list" is selected, but still icq5 users can add me without me knowing, and send me messages without me being able to block them (obviously, related to the bug/feature request about blocking all messages from people not in my contact list).
AFAIK, with the icq protocol it is impossible to keep someone from adding your contact to their list. The help text of the option "Require authorization before someone can add you to their contact list" describes this more precisely: "[...] Check this box, and you will have to confirm any users who add you to their list before they may see your online status." And even this does not hold true for inofficial icq clients, see the option beneath the already mentioned one above: "Respect other contacts' wish to require authorization".
require authorization isn't actually implemented yet. i'll have to remove that option for now. the option is just left over from the old code.
*** This bug has been marked as a duplicate of 71660 ***