1
vote
3answers
199 views

Should (and how should I) I use email addresses for login without validating them?

So that users don't have to remember a username, my webapp doesn't ask users to enter one (accounts are private and there are no profiles or user-generated content). However, I would also prefer not ...
9
votes
5answers
2k views

Should registration be optional on an e-commerce site?

I am developing an e-commerce web site which will sell tourism services (airport transfer, accommodation, excursions, etc.). I am on a path here that I need to decide if I will provide a membership ...
7
votes
4answers
1k views

Ways to avoid online contest voting fraud … is SMS account verification too much to ask?

Mitigating Cheating & Voter Fraud in Online Contests… We run online contests of various sorts that involve users voting on entries (usually one vote per user per day). The prizes range from ...
3
votes
2answers
234 views

How to handle creating new account with email address that is unverified on another account?

We have email address verification on our accounts. Users have to verify their email addresses when they create their accounts and when they update their email addresses on existing accounts. With new ...