PUPSC a threat?

[Guingion]

My Spybot-scan found a PUPSC-threat in a (freeware) program called RegCleaner. This is the additional information:

Company:
Product: RegCleaner
Threat: PUPSC

Functionality:
supposed to speed up system performance by cleaning the registry

Description:
The sense for udage of registry cleaners is doubtful since the speed up effect of these tools is usually not present. Some registry cleaners can be used on user preference as long as those are free of cost. It is not recommended to pay for software which cannot prove its usefullness.

Doesn't seem a threat to me. Can anybody tell me what this means and why Spybot tells me this is a threat?

I use Spybot 1.6 and updated the latest definitions.

[md usa spybot fan]

Guingion:

PUP stands for (Potentially Unwanted Program). It is not necessarily a threat but some registry cleaners can be problematic in cleaning up registry entries. In addition some paid for registry cleaners are just scams.
Registry Cleaners, not recommended
http://forums.spybot.info/showthread.php?t=30038
Why I don’t use registry cleaners Ed Bott’s Windows Expertise
http://www.edbott.com/weblog/archives/000643.html

[Guingion]

Thanks, this is clear to me. I will uninstall RegCleaner, because I didn't use it for a long time. I have read about registrycleaners recently telling me the same thing: it's not necessary and probably no use too. I will re-educate myself on this subject.