This is a pretty comprehensive list, thanks for sharing!
In addition, hardware wallets can be a lot useful. It is one of safest means to store bitcoin and other altcoins but you still have to protect it again scammers.
I can't recommend this part enough. Hardware wallets can help prevent many of the scams listed in this article. No matter which hardware wallet you choose it will be safer than a web wallet (as long as you keep the recovery seed safe somewhere).