To be fair, the tests they can use to assist you are outlined in a thread pinned at the top of the forum: Common Technical Issues and Solutions - #30 by Drakuloth.
Both myself and Jambrix have tried to point out possible reasons this issue is happening, and I also mentioned the WinMTR earlier as a tool to help you. If you are seeing issues on both wireless and wired, then the issue may be specific to the local network configuration, the ISP’s network, or even a hardware processing delay (driver issue/overheating). A WinMTR and DxDiag may help diagnose this. There’s only one way to find out: try running both diagnostics and reviewing errors.
Not every post is going to see a response (another note mentioned in the pins). The forums are largely supported by the community, and don’t function like a ticket queue. As for posts that remain unsolved: We’re all just humans trying to help as many players as we can.
On this topic, there are always going to be players with connection issues posting in the forum. That is just the nature of online content. When the server is having issues, Blizzard makes this known on their Twitter account. They’ll also see the forum, ticket queues, and Twitter replies become flooded with alerts about it.
60-70ms is very common for North American players (it is for me), and as a general rule, not considered unplayable latency. Depending on location, pings into the mid to late 90s are common, too.
Blizzard hasn’t announced any server issues or fixes, and I’m not familiar with how Verizon handles news/updates to their network or devices.
Please remember that people are trying to help you, and it’s not kind to say we’re not “actually helping” in another thread. That doesn’t encourage anyone to continue narrowing down this problem for you.
At this point, I think it’s best if you submit your diagnostic files via the ticket system and work privately with the staff on this issue.