This is a suggestion that some have recommended because the investing subforum has been filled with posts relating to bitcoin and other crypto currencies. I believe it might be handy to add this subsection for people to talk about crypto currencies.
It might also be handy to have a subsection where people can talk about individual stocks or stock picks as well so the investing subforum can be used for general investing questions and not promoting specific stocks, cryptos, or debating the merits of crypto which is what this subforum has become lately and sometimes the discussions can be rather emotional.
I suppose it could be argued that's what the investing section is for though, and people can use the regular economics or personal finance section if they have other questions.
Feel free to take my suggestions or not.
Have a good day!