I don't understand, in what way is a time signature fluid?

(King Zog of Albania lives in Kensington, Wed 6 Mar 2013, 22:11, 1 reply, 12 years ago)

1234567 1, 2, 3, 4
that's not really hard work
(King Zog of Albania lives in Kensington, Wed 6 Mar 2013, 22:12, Reply)

it doesn't matter.

( Windy Pig I'm naturally quite suspicious about the moon., Wed 6 Mar 2013, 22:14, Reply)

I'm trying to learn here and you're not helping me
share your wisdom, teach me these secrets please
(King Zog of Albania lives in Kensington, Wed 6 Mar 2013, 22:16, Reply)

wait, I get it now
1234567 1, 2, 3, 4

is when they're "conventionally joined" but

1234567 NIGNOG BANANA 1, 2, 3, 4

would be unconventional right? am I learning now? this is fun
(King Zog of Albania lives in Kensington, Wed 6 Mar 2013, 22:18, Reply)

I'm ready to open my offset triple valve now and get my plymetric leotard on

(King Zog of Albania lives in Kensington, Wed 6 Mar 2013, 22:19, Reply)

1234567 I LIKE THAT JACKET YOU'RE WEARING 1, 2, 3, 4
must be complimentary time signatures

I understand now! thank you so much!
(King Zog of Albania lives in Kensington, Wed 6 Mar 2013, 22:21, Reply)