[A11Y] Incorrect Screen reader behavior while in "Describe what happened" text area

[softvision-oana-arbuzov]

Browser / Version: Chrome 89.0.4389.90
Operating System: Windows 10 Pro

Prerequisites:
Screen Reader (Offered by: chrome.google.com) extension installed.

Steps to Reproduce:

1. Navigate to https://webcompat.com/issues/new
2. Fill in all data required until reaching "Describe what happened" text area.
3. Observe Screen reader behavior.

Expected Behavior:
The hint text is read and the Screen reader notifies it is a "Text area" once.

Actual Behavior:
The hint text is not read and the Screen reader repeats "Text area" 3 times.

Notes:

1. Screenshot attached.
   

Watchers:
@softvision-oana-arbuzov
@softvision-raul-bucata