It is not every user who knows that third party wallets are managed by the developers themselves.
It would be interesting if such information were more accessible to new users. This would inhibit these attempts of scam.
While the current 3rd party wallets are run by people involved with development of RaiBlocks hopefully more people are going to make more services including online wallets. To get your wallet on
https://raiblockscommunity.net/ homepage you need to provide that its safe - this is where we should direct users.
If you want to or are developing a new service using RaiBlocks its a good idea to go to #development on the RaiBlocks slack and introduce your services as thats going to speed up its validation/recognition etc.
As with all cryptocurrency you should always be cautious...