Please add the feature to turn on global sounds so people around you aren't alerted. I know this is possible due to the fact that vanish has the capability as well and it's even in the plugins config to turn off sound globally so no one hears the action beside you.
Sounds can be heard by everyone
+1
Honestly this should be an option by default because while this plugin is useful and nice to have, this is the one critical flaw in the current version. Players can easily send repeated PMs in order to pinpoint another player in close proximity if they figure out this exploit exists.
It's very possible to prevent this entirely by making the sounds clientside only. There are various plugins on UMod that feature this behavior, including Vanish as you mentioned before. In fact if it's not incorperated into an update soon I may just do it myself when I get some free time.
EDIT / SOLUTION: I have successfully cooked up a solid solution in record time and I have a working .cs file with all the changes incorperated, should anyone desire them. This will add an option to the configuration file that specifies if the sounds should be made public or not (false by default), and it adds the neccessary functions to make all this black magic work. I am unsure what the current rules are as far as posting links to files here, and the current version of this plugin has no maintainer - so I will simply encourage anyone seeking an updated version of this plugin that includes these fixes to PM me directly and I will provide it for you. =]