I read this, on the official answer to What can I do when getting “We are no longer accepting questions/answers from this account”?
My account is in good standing. Why am I still blocked?
The ban also takes in account the IP address. If you browse from a shared computer, or from a location that gives the same IP address to many end users, it's enough that another user who was banned or triggers the ban, will affect everyone else accessing from the same location.
Does this really block all accounts - even clearly trustworthy accounts with a strong history of good questions and answers?
I understand the reasoning behind banning based on IP - to stop bad users side-stepping bans by creating new accounts. But a bad user can't magically create a new account that is, say, 6 months old, or has 99%+ quality posts, or has 1,000+ rep. Are such accounts really included in the block, even though they clearly couldn't be the same person?
For example, what would happen in one of these scenarios:
- A colleague, housemate, family member or guest of yours - yes, you - is, right now, posting lots of terrible questions, and they're on an IP you'll also need to use (e.g. most WIFI networks, many company networks or any shared workstation or hotdesk). Will you be blocked too when your colleague causes the IP to be blocked, or is your very good track record taken into account? This could cause good users real problems.
- I log on to SE from a hotel, cafe, guesthouse, library, university residence, rent-a-desk, community room, venue or other public place that gives me an IP used by bad users. Am I caught up in a collective punishment, or is the fact I've proven I'm a good user taken into account?
- Jon Skeet takes some orphans into his home, who are instantly inspired to become programmers - but before Jon can show them how to ask good questions, he is urgently called away to stabilise a failing nuclear reactor. When he gets home an hour later (the traffic was really bad), one of the orphans has asked a heap of bad questions, causing his IP to be blocked. Is Jon Skeet also blocked, in his own home?
Are all accounts on the IP blocked, or only accounts that could actually be the bad user trying to evade a ban? And if it is all accounts, why, and what is the response to the rare-but-plausible scenarios above?