What does means "Re: <slightly OT>...." in the subject ? ...

[NoOp]

On 09/27/2011 03:33 AM, Goh Lip wrote:
> On 09/27/2011 04:56 PM, Alan Pope wrote:
>> On 27 September 2011 09:48, Jared Norris<jrnorris at gmail.com>  wrote:
>>> To put it simply,<OT>  means the email is off topic and is an
>>> admission from those who use it that they really shouldn't be emailing
>>> the list with whatever the topic of the email is going to be about.
>>>
>>
>> Best. Description. Ever.
>>
>> :D
>>
>> Al.
>>
> Okay guys, no more attaching or modifying subject lines with <OT>.  ;)
> 
> cackle cackle - Goh Lip
> 

Yes. Please use [OT] rather than <OT>