Avoiding youtube channel bans

I had 6 youtube channels banned a few months ago, they were all on the same IP.

I broke a cardinal rule and uploaded more than 5 videos per account...

Vimeo is alright, but I would like to get back on youtube aswell.

What are the video limits per account and accounts per IP, in your experience?

Thanks

There is no such rule. I've got accounts with 20+ vids per channel and they re doing fine