Email Anonymization / Hide User Emails is now on by default for new apps, and you must choose to collect real user emails if you want them.
There’s a bug where this setting may change if you open an existing app in the editor and you have never set the setting before. We are rolling out a fix to prevent this setting from changing when editing existing apps.
why is that?
We want privacy to be the default.
I would rather not prefer default on this David. This is a choice. As far as I understand client behaviour, people want email addresses of who is using their app.
Then they should design their app to ask for this information explicitly.
We also plan to make Collect Real User Emails a paid feature.
I think this is a smart move and likely covers Glide for some legislative pieces around the type of information that is shared with others.
I’m thinking for people who may want to collect email addresses explicitly — once this is a paid feature (auto-collection of email addresses), is there anything that would prevent an app developer by adding a field to a User Profile, for example, to ask for the Users’ email address? This way, the app developer is the one asking for the email. In this situation, I believe this developer-collected email address can still then be used for filtering and other user-specific features, if needed.
Thanks for the notice 
but I have a question:
Can people still login using their email and retrieve their “account” details even when they are anonymised or it would create a new user everytime they sign in 
?
They will get the same anonymous email each time.
Update: We’ve fixed the bug which caused Hide Emails setting to turn on automatically when editing your app.
I don’t see it as collecting email adresses, I see it as building up relations with people so I can give them the information they want. For example connecting with Memberful so they get more info as paid users or connecting with Mailerlite so they can receive newsletters. To do that via Zapier I need their e-mail-adress. So it’s not to hinder them, it’s to help them.
Or is something like this possible with ‘hide user mails’ ?
It now feels to me it’s not about privacy but about upselling clients to paid features. Which is legitimite of course, but it’s something different 
It’s about privacy, but even if you see it as an upsell, that’s also fine, because Glide is a business at the end of the day, and Glide will survive by charging customers for what they value.
Don’t feel offended, David! It can be valuable as well to see how users look at the steps you take. In this case a user that hopes you will be very succesful with your business and is a daily advocate of your tool.
I guess privacy is something that has to be taken seriously. We can still switch between hide/show until premium is introduced. But, we only have ourselves to blame! we shouldn’t have released all those apps showing how to hide/show emails. Its the price you pay, and now they have slapped it onto all of us! 
I haven’t made an app where people didnt want their mail-adress to be known, but maybe that’s because I am always in the field where there’s trust between maker and user anyway. But choice is always good.
I guess my only issue with that is that I see it as a degradation of the user experience.
To explicitly ask for that information means that a user will sign in using their email address, and then the first thing they’ll see is an onboarding screen asking for the same information again.
As a user I would find that weird and annoying, and my level of respect for the both app and the developer would immediately drop a few notches.
But I get it - security vs. convenience is always a difficult juggling act, and you almost always end up with compromise.
You should sell it as a benefit/feature of the app and that you are in fact a responsible developer and this is by design.
Just off the top of my head an example could be.
“We respect your privacy and anonymise your email address” “If you wish to receive email updates from us please confirm your email address below”
If you want you can sell everything whichever way you want
For every wise, careful, well-intentioned developer like @erwblo, there are 10,000 people using Glide… carelessly. This change is meant to protect their users!
FYI, it didn’t fix on one of my apps but rather change the privacy to allowed email lists on a free public app and remain on the hide real email.
I needed to manually fix this.
Do I need to check all my apps in this now?