Organizations use cyber-systems in order to get better results. They don't want to implement systems that users hate. Make your views known (a good use of email) and be willing to take your custom elsewhere.
Although anyone who has worked with computers knows how fallible computer systems are, there is still a dangerous naivety about 'the computer says', 'computer predictions' and the like. Not only are there fundamental limitations in principle to what computers can do, but computer systems are also limited by the fallibility and lack of foresight of their human designers and implementers, and by the quality of the data they are fed. One of the oldest acronyms in computing is GIGO, which stands for 'garbage in, garbage out'.
There is a plethora of information out there. You can use it and make the difference. In so many fields the ready availability of information in cyberspace redefines the balance of power between individuals and large organizations.
Even sophisticated users often fail to make regular backups and fail to encrypt sensitive email or take the normal routine precautions that are the equivalent of locking doors and checking that the fire is out. As we all become increasingly computer dependent this casual stance is likely to be increasingly dangerous.
A healthy scepticism about digital images and information is increasingly necessary - manipulation that would have been regarded as faking is now routine in many contexts.
Netiquette (email etiquette) is important. Avoid 'flaming' (sending offensive angry emails) or 'shouting' (CAPITALS). Flaming happens very easily in cyberspace, even descending into a flame war. So recognize when people flame and either ignore it or give a gracious reply. It is quite likely that the person you think is being rude had no intention of doing so. Conversely, if you make a joke, put a smiley after it - a sequence of characters like this :-) that looks like a face - so that they won't be upset if their sense of humour isn't like yours.