I recently also started using a service called Lusha , which plugs into LinkedIn and provides phone numbers and email addresses for people to whom I’m not connected. It’s great.

As finance editor, how much have you seen tech upend the financial industry and Wall Street?

Lots. The buying and selling of securities has been revolutionized. Transferring money to friends is becoming seamless. Larger loans are available to more people at lower prices. Wall Street firms say they are tech companies, not Wall Street firms, which is not true but sounds cool. Bank employees plot crimes in digital chat rooms. Other bank employees use algorithms to catch them. Bitcoin exists.

On the other hand, despite encroachments from Facebook, Apple and others, the same oligopoly of big banks and Wall Street firms (including those that claim to be tech companies) still dominates.

You’re also prolific on Twitter. What are your rules of engagement on Twitter, and what will or won’t you do on the service?

I try really hard not to say stupid or bad or mean things. I do my best not to fight with people. Sometimes this is hard.

I’ve learned that if I have to spend a lot of time thinking about how to phrase a tweet so that it won’t get me in trouble, I should just put my phone away. Similarly, if I have to ask a colleague if it’s a good idea to tweet something, it isn’t. This seems obvious, but it took me a while to figure it out.

I’d also like to rebut your accusation that I’m “prolific” on Twitter. I joined in August 2010 and have tweeted about 10,700 times — an average of a bit more than three per day. Unhealthy, yes, but prolific?