I have also been a sneakemail user for probably 15 years and have accumulated over a thousand addresses. Two years ago I switched to using a catchall .com domain because the sneakemail domains are blocked so frequently. Domains from other services like 10minutemail.com and fakenamegenerator.com tend to be blocked, too. Plus addressing is also hit or miss — sometimes a system will let you sign up with a plus addressed email but other parts of the system will reject it (ahem, banks).

15 years ago, a catchall email domain was unthinkable since spammers would try dictionaries of words against a domain in hopes of finding legitimate email addresses. However, this no longer seems to be a trend.