Good luck when google decides you infringed some TOS because you uploaded a youtube video with music playing on the background or some BS like that and just locks you out of all the services you registered with that feature

It took me less than 15 seconds to create an account on hackernews using a temp-mail (any free service would suffice) to respond to this comment (less than writing the comment itself)

try creating a new google account: - whoops, you need a phone number - whoops, you need to go through a welcome guide (it's getting progressively harder to skip it) - etc. etc.

All that for trying some use random service some random posted on some random news aggregator website without tying it to your 'main online identity' ............

You can use a temporary "junk" email when registering to something like that for testing it.

It is not very convenient to do the same with Google etc.