Are "Big Fish" video games dangerous to a computer in terms of memory?

Not really dangerous but very annoying. It install what is generally considered spyware. See site:
http://spywaresignatures.com/details.php?spyware=bigfishgamestoolbar
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i’ve been downloading games from big fish, since last year maybe more (really long time)
and never found any risks in my computer
so MY answer is : i don’t think so
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