On 30 May 2017, at 15:37, Daniel Gultsch <[email protected]> wrote:
> 
> 2017-05-30 16:28 GMT+02:00 Kevin Smith <[email protected]>:
>> On 30 May 2017, at 15:18, Daniel Gultsch <[email protected]> wrote:
>>> 
>>> 2017-05-30 16:02 GMT+02:00 Dave Cridland <[email protected]>:
>>>> Presence, mind, I'm not so sold on - I think it's significantly less
>>>> important, since presence is stateful rather than an event. But I'm
>>>> not averse to it - I'd just argue that if it causes problems, just
>>>> don't bother delay-stamping.
>>> 
>>> I have no hard feelings regarding presence however if we stamp with
>>> the account jid it wont cause problems.
>>> And people are really obsessed with 'Last Seen' Whatapp-like
>>> information. (That's how I stumbled over the problem in the first
>>> place.) So in their interest it would really help to have a more
>>> detailed time information on presence as well.  (Mind you CSI can
>>> easily delay those information by multiple hours)
>> 
>> I’m not sure, given the peculiarities of presence probes and S2S and etc., 
>> that using presence for this is particularly reliable. I could wrong (again).
> 
> For this kind of audience and in lack of a 'proper' mechanism for this
> faking it seems to be good enough.

Yes, that may be.

> Also stamping presences is done elsewhere as well. (Presences received
> after signing in are usually stamped).

Only the ‘offline’ presences, because they’re delayed, though. ‘Live’ presences 
aren’t.

> A lot of clients show
> 'Available since…' or 'Away since…' information somewhere in the UI.
> So reliable or not SM/CSI should not behave different here.

I think I’m arguing that stamping presence on SM/CSI *is* behaving differently.

/K
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