No, don't.
Don't send them anything.
Something ugly happened on several past occurrences with me and other male members when PMing a female member (ask TheSpectrum, he can tell you what happened to him once), the typical scenario goes like that (Note that the PM has NO flirting/sexual or any offensive language at all in these scenarios):
- Male PMs a female member, either just to say hello or to PM a private comment (usually side-topic or off-topic) on a thread they were both participating.
- The female responds that she doesn't appreciate unsolicited PMs OR
- The female ignores or responds then she posts to bring it up as a reply on the related thread something like "I would appreciate if you stop PM! Boohoo stop it" (even though it was just 1 PM from him); you know in order to dramatize things or to boast about herself AND to paint a ugly reputation on the male as a Online women-harasser.
So don't initiate PM with them, I've only initiated PMs with very very very few female members whom I was sure they were completely safe and won't be jerks about it, for instance hurtloam, Chronos and nurseangela; or I rely to a PM.
For example, in TheSpectrum's case, I thought at first his PM may have contained something offensive, when I asked him and showed me a screenshot of it, it turned out to be nothing of the sort, it was a simple conversation about life and cars.
I am convinced that it's not worth it.