as zooko already mentioned in several places, we should
think about forgetting comm strats to easily.
I think we should never forget a MT's comm strat until we
know a better one, since it is very well possible that a
MT, which should not be a quickly moving target, might
reappear with the same comm strat, what ever reason he
was unreachable for before.
Especially since we often have only one MT, and we don't
reload bootpages, so we are lost if we forget that MT's
comm strat if we are not pleased by the rare possibility of
caching a late responses from it.
I am not sure what to do with 'normal' brokers' contact
info, but i can imagine we might find a solution like
flagging a commstrat as 'old' if we doubt it, so we are
motivated to look for a new one, but keep trying the old
if do not find a new one.
With some backoff which peerman might help us
sometime to provide.