The plugin sends messages on plugin loading and opening of the editor to https://ping.aptana.com/ping.php. Some users may not mind the "usage tracking" done this way, Others do dislike this built-in "call home" feature for privacy reasons. The transmitted data might not be that sensitive but tracking users identified by a unique id and their ip address without asking for permission is a questionable (and illegal?) feature in my opinion.
The attached patch (against version 1.6.3) disables the network transmission completely. If the feature is desired by others a configuration option could be the compromise to take (off by default hopefully).