As you have been a long standing user of the service, there should be no problem explaining the software, for so long as you are not doing so for commercial gain. It's as simple as that. In order to weed out spam, we must put up some road signs to prevent everyone and their co-workers from spamming registry programs, etc. on the site. I am sure mentioning the program and how it has benefited you in some way (without an affiliate link) could be of some benefit to certain individuals. As always, all software is use at your own risk. You could also add it to the Downloads section if you think it is that critical for system use by others.