jysafe

CN: 最基本的形式： 
 输入上图物质分子式，看着复杂，其实挺简单的，数数各个原子个数，按照顺序堆起来就行了。 
 此外还有计算矩阵、说出事件发生日期的验证码，三者随机出现。
EN: This is a special captcha plugin. 
 It is not verified by math but by chemical formula and Calculation matrix and date of some event.

Traum Captcha

Dave

This is an event attendance plugin, which allows configuration of multiple events, and embedding of multiple events in any page or post using shortcodes.
Add an event in the admin panel with a name, description, closing date (for signing up) and registration limit (for number of users who can signup). You can then embed a form into any post or page using the wordpress shortcode [seatt-form event_id=x] (x = the event id).
From the admin panel you can read comments left by people who have registered, as well as boot them off the list or delete the list altogether.
Please note you have to allow user registration for this plugin to function. If you allow non-registered users access you open the form up to spam and also numerous issues when people want to change their status, enter incorrect details, or register other users on their behalf. As a result the plugin will remain registration-only for the time being.
Uninstalling removes all traces of plugin, including from the database. This means any events you have will be lost. Updates will not affect existing events nor their attendees.
Comments are always welcome, it’s through feedback that we improve!

SEATT: Simple Event Attendance

Simple event attendance list plugin. Set up an event in the WP admin panel, and users can register for these events. Multiple lists can be added to an …

Traum Captcha vs SEATT: Simple Event Attendance