You are definitely right about blocking those above, however I think we should mainly stick for the rule of blockings those with hits on web ( Google or Tineye) all others we should carefully consider as there are currently some issues going on aw not seen in past years, like growing number of girls reply to texting only, even English not answering voice calls now, instead they just send you txt please or some kind of template. Can tell from my experience of using few of these ‘’texting only’’ for outcalls mainly polish and had experience almost shock that most of them come as those from pics and even speak some English.
But on another hand some other EE mainly Romanian (showing as Hungarian on profiles obviously, being Italian origin myself can tell the difference as experience Romanian services many time in past when back in country, we got a lots of problem with it there) gangs do employ receptionist to answer with ‘’lovely’’ EE accent, but when you get to directed flat, no one looks like from pics or they say that my chosen one is busy now, they operate mainly around North West London