I guess it's time to explain again my process when it comes to vulnerability disclosure
In the 2 cases the process is the same.
1) Who is affected?
2) What is the issue?
3) Can you access sensitive data?
4) Can I reproduce the issue?
5) Did you try to contact them?
6) Do you want to stay anonymous?
If the person didn't contact the concerned company, I suggest him to contact them (by email, phone call, whatever) and keep me updated if nothing happen
If the issue is clearly not as big as he thinks, I'm trying nicely to tell him.
Because it's quite effective and with it, we managed to fix hundreds of issues. Give me a process with the same results and I will use it, no problem
F*ck yeah. I'm sorry, if you wanted to be credited, if I didn't answer to your DM. I'm handling a lot of things at the same time, I'm receiving hundred of messages per day, so yep it's complicated to be everywhere.
You don't know how much I don't care. I only care about fixing issues.