Good thing or bad

You tell me you sexy thang.

You big flirt!

bad when you're already taken/married

can be either good or bad. Depends on context.
When single, it's everyone's own business. To each their own.

When in a relationship it can be different.
For me there's the 'normal' flirting, the stuff most of us do, totally innocent, not over the top and not consistently.
And there is the constant flirting with whomever wherever whenever that gets up a partner's nose because it's disrespectful to do so all the time.
STill, there are people who aren't affected by that, don't mind it.

Then there's the 'not normal' flirting. Flirting that isn't so innocent and goes further than just totally harmless fun. It has an underlying intent to be sexual, a -maybe even subconscious- desire to want more with the other person.
Some are looking for that sort of thing non-stop, seem to need it in order to feel good. A form of acknowledgement?

To me that is a bad thing. Totally disrespectful to a partner and an indication of some issue.

good if the feeling is mutual and you're both single!

Depends on what your doing it for. For me I am total flirt. If I am at the Senior Center with my grandmother, I flirt with the old men and dance with them. It makes them feel good, same with disabled children, or even someone that feels negativity. A little flirt can go a long way in someone life. Self esteem is an important thing. I, also, have boundaries and it has been tested by others, but they are quickly put gently in their places.

I think it depends on who you are flirting with and why and to what degree.

yeah

In my observation, people think or say it's good or bad, depending on what they think "flirting" means, at the moment you ask them.

Some people think all flirting is specifically designed to arrange for sexual intercourse, and those people will say it's good or bad depending on whether you are flirting loyally and morally or not.

For others, who think of "flirting" as more of a vague, general, lively and friendly form of banter amongst relative strangers, for the sake of keeping conversation light, it's likely to be thought of as a mostly good thing.

The one mistake NOT to make, is to take ONE group's definition of what it is, and their approval or disapproval of it, and insist that the OTHER group has to adopt and abide by that version.

As long as you keep your relative associations straight, you'll probably get along with most folks.

right

I love to flirt....

It depends on the parties involved

Anymore, it's a bad thing.

Ask anyone how they like playing games in social relationships (an attempt to differentiate from the pedantic "I like monopoly!").
You'll almost unanimously receive an answer of "I hate it when people play games!"
"Don't hate the player, hate the game!"

Flirting is ultimately a game.
It's reliant on indirect and unclear communication.
What do you read on the forums? "I hate liars! Why can't people be honest! Just tell me what you want!"

Vagaries of life used to be enjoyed. Not knowing what someone meant, but they "could" mean something. Double entendre and faux pas'.

You never know how someone is going to take something.
What meaning they are going to put into your words.

So, generally speaking, flirting is a bad thing.

At best you get some people who "love flirting and those that can do it well."
But when you know anything about them what that really translates to is "I like passive aggressive speech, it gives me a sense of control and doesn't force me to take responsibility for giving them a direct yes or no, it allows me to avoid committing to anything while forcing them into giving me attention as well as validating my opinion of them."

Heya darling can we be friends

Not tonight no

I agree with all who say 'it depends.' Depends on the time, place, context, relationship status of those involved, as well as the intentions of the folks that are flirting.

Say you're on a dating site, presumably for singles... um, yeah it's good. It's expected, right?

Frankly my dear I don't give a damn!

Flirting is FUN! If someone takes it the wrong way then F them!

It's a great way to find out who has a sense of humor or not.