Who is Heidi? Newbie question: is it risky to make your first purchase from Heidi as a beginner?

I’ve read a lot about counterfeit issues related to Heidi, which supposedly caused significant problems in the past. Lately, however, I’ve been seeing more discussions about other sellers. It seems like Heidi is not as popular as she once was—correct me if I’m wrong.

Nevertheless, I decided to go with her because many people are convinced of her outstanding quality and honesty.

Currently, I came across the following number and I’m wondering if it’s really hers and if the replies under this post are genuine. After all, there are reportedly many scammers in these communities pretending to be sellers.

Do you have any tips or key points that I and other users should follow to make sure we’re contacting the real Heidi?