As'salaamu caleykum @sister herb
Sending your personal details to unknown sister when you're a male regardless of your intentions is not allowed in Islam or just in this forum?
The brother made it sure to claim that he has distinctive information on Islam, are you suggesting that there is no need for him to share that with a sister? And that he should leave sisters to sisters even though he feels the information he bears can be of great help?
or is it that you're saying communicating with the opposite gender is simply haraam even though the intention is Da'wah even though the barrier(Hijab) exists between them? regardless of the intentions,does a private chat between male and a female fall under Khulwa even though they neither hear nor see each other?
Regardless of the intentions is communicating with a sister in chats simply haraam even though all the codes of conversation(not talking softly etc) are kept in place?
what about in real life can't a woman ever speak to a man(and vice versa) regardless of the intentions, manner, necessity and codes of virtue?
I thought what's forbidden is the mutual,meaningless, day to day chat between males and females but is that also true for every chat between a man and a woman?
A sister can choose to apply the yes of all those(and it is only good for her and
Allah will reward her for that) but is the yes a legislative rule?
what if you regard the intentions like the case of the brother?
If yes is the case then doesn't your ideology sound more like Isolation than segregation?