Re: [quicwg/base-drafts] allow PRIORITY frames referring to placeholders exceeding `SETTING_NUM_PLACEHOLDERS` (#2761)

[Alessandro Ghedini <[e-mail]>]

This change doesn't make a lot of sense to me TBH. If the client is allowed to ignore the server setting, then there's no point to that setting. 

If the client can't adapt its prioritization scheme based on the number of placeholders allowed by the server and proceeds to use more placeholders, then it is likely to end up effectively disabling prioritization for the connection completely (if the server does set a limit it probably means it won't respect the priorities that use more than the placeholders allowed, otherwise it would set the limit to a very high value).

So in practice servers will just end up setting their internal limits and the setting to either whatever value popular clients need, making the setting meaningless, or still set it to a lower value effectively disabling prioritization with some clients.

Anyway, TBH at this point I'd rather spend time exploring the discussion about limiting or even removing placeholders as we talked about in London (including talking with HTTPbis) rather than try to hack around all of these problems.

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