While Pidgin provides the utility of being a robust messenger, it cannot fill all the security loopholes, such as online spamming.
Some examples include, the frequent spam messages received on Yahoo and Windows Live Messenger to advertisement from adult websites and malware infections from file transfer from dummy messenger accounts.
There are numerous multi-messenger desktop clients available on the internet.
Pidgin is one of them and purportedly a widely used multi-messenger for chatting across multiple messengers and platforms within a unified interface.
This plugin can assist you better and will give world class chat experience to your users/ viewers or customers.
Zopim is the most popular chat plugin for Word Press shopping sites.
If you do not know programming and you do not wish to do copy and paste of the codes into your web page then WP Live chat support is the best option for you which provides you the best solution for live chat.