What do YOU think?
Some people will brand her "slutty" or whatever other misogynistic name you can come up with and others will think "she's perfect!". The thing is...judging her solely on her sexual activity isn't sufficient. If you want to date her, and bear in mind you say you won't "smash a girl with no morals", then it's only your opinion of her that matters. She might think that her behaviour is no issue, and so she shouldn't if it isn't for her, but it's no good you dating each other if your values and morals don't match up. That doesn't make either of you wrong, it just means you aren't compatible.
If you like her and can comfortably process her past without finding any current problems with it, whether that's with trust, how much you value her etc, then don't let it stop you. If you judge her and find it difficult to look at her as a decent person just because of how she has behaved prior then I would think about how that would effect a relationship between you two.
There isn't anything wrong with using someone's previous behaviour to judge whether or not you should date them and it doesn't mean you are condemning them either. You have the right to choose who you do and don't date for whatever reason - even if it is for reasons that others deem judgemental or shallow. At least then you will both be with someone who is compatible.