There is little stopping players from giving said feedback in any form.
A solicited email carries something of a demand and comes across as creepy, invasive or just plain odd. Why would a DM of a text based game need to know (or care) who is on the other side of the screen? Men play women. Women play men. Does it matter what their RL identity is? It doesn't to me. That then fosters the impression of bias, sexism, chauvinism, racism and so on "Because staff know I'm X and are treating me this way for Y!".
No thank you.
Also, as three warnings was not sufficient and your entire premise of late is to either attack staff, attack players, post inflammatory nonsense, and/or outright lie over intentions, reasons and so on - your game account is now banned as well as your 4th GDB one.
*Edit to add - as a re-read of this may carry an image we don't wish from the staff team, this particular post was perfectly fine. Such feedback or questions are welcome. The posted movement to ban is due to a long-standing ban being bypassed, not once, twice or even three times, but four times, intentionally. Previous posts have been as claimed in attacking/inflammatory, etc. Thus, the decision was to further add the game account to it.
My apologies for any confusion on how that initially read.