/jp/ - Otaku Culture

Suika is very definitely not bloodthirsty. She's very similar to Remilia, she just wants to piss around and have fun, doesn't matter how.
Can she kill people without a blink if she wanted to? Definitely. Has she killed a lot of people? Definitely. Is she bloodthirsty, in the sense that she's just "holding herself back"? There's not really a lot of evidence for that.

A lot of people forget, but Remilia started the entire Spellcard Rules. She went on a tear in Gensokyo and forced everyone's hand to go against her, and she did all of it presumably (on the text in PMiSS) under the guide of letting Youkai eat more humans . Her rampage was massive enough that after the incident, the Spellcard rules were created.
Now, what does she do?
She regularly holds parties, humans invited. She hires fairy maids, and is probably one of the best employers in Gensokyo. She collects random ass pets to safekeep.
Despite her initial showing in Gensokyo, that's not the actions of a bloodthirsty monster holding herself back from killing: that's the actions of a bored person that just wanted some entertainment. Suika's very similar, if not even more tame. Suika's incident is probably the second most non-incident incident in the entire series, after PoFV.