What's wrong in this templatized operator overload ?

[Vladimir Panteleev via Digitalmars-d-learn]

On Thursday, 22 October 2015 at 03:21:35 UTC, MobPassenger wrote:
> On Thursday, 22 October 2015 at 03:18:25 UTC, MobPassenger 
> wrote:
>> code:
>
> Plz don't reply, there's been a forum bug while posting.

What forum bug would that be?