Normally, I would say the man should engage the lady.
However, if you're referring to the thread where people post about themselves and the men respond to the ladies, I find that highly improper and imprudent.
The men are the ones who should put themselves out there and post about themselves publicly. There is no need to expose the young women to needless threats or undue public scrutiny.
In this case, I would say, it is the men who have put the first foot forward, by putting themselves out there, as it were.