This is not a TAAT but has been raised on another thread.
WorraLiberty has summed this up well & (with her permission) I am quoting her from another thread:
"I don't use a phone for Mumsnetting, so I would actively have to log into my email to check on the off chance that HQ might have sent me a warning for something.
Rebecca said... We have temporarily suspended her account for personally attacking several times on the same thread in a short space of time when we have sent previous warnings about similar behaviours.
If it was in a short space of time, she might not have seen the emails.
Whereas if her inbox lit up, she probably would have and then heeded the warning.
It's how lots of forum moderators do it."
It seems such a good idea. Not all of us use phones for Mumsnetting.