Yep, I've had my youtube account since before Google bought youtube in 2006. Just this week I noticed that I am no longer able to put URLs in the descriptions of videos I upload to youtube. I have to "verify" by giving them my phone number before any clickable URLs are allowed in descriptions. But apparently all URLs are clickable URLs. Additionally, even videos I uploaded in 2008, if I go to edit their descriptions now and I originally included a URL, I cannot submit it.
Phone number "verification" is nasty. I suppose this is the end of my almost 2 decades of using youtube to host videos.
As for email spam prevention, I've run my own mailserver with a domain since 2011. I give each service an actual unique email address and then just catch-all emails sent to my domain. It works great.