The present continuous emphasizes action in real time.
For example, an announcement is made repeatedly over the train-station loud speaker:
The [garbled] will be approximately [garbled] minutes late due to [garbled].
The [garbled] will be approximately [garbled] minutes late due to [garbled].
A passenger waiting in the station could turn to another and ask:
What is he saying?
P.S.
The implication is that speaker and listener are in a situation where this announcement might be made yet another time. The present continuous refers to it as something which is ongoing or repeating.
If the speaker believed that the announcement is not likely to be made again, or is perceiving the announcement as something that took place a moment ago, the question would probably be:
What did he say?
In this particular contextual example, the question would not be asked in the simple present:
unidiomatic What does he say?
unless it referred to a specific place in the announcement:
What does he say after "due to"?
What is he saying after "due to"?
The answer could be, respectively:
He says "due to switching problems".
He is saying "due to switching problems".
The simple present there would refer to the phrase that follows "due to" in the announcement as one that occurs with some predictability or regularity: he says it in the same way each time he says it.
The continuous would refer to the phrase that follows "due to" in the announcement as one that we are hearing him say again and again.
P.P.S.
Even if the announcement comes over the loud-speaker once:
[garbled] [garbled] [garbled] [garbled] emergency [garbled] [garbled] [garbled]
a person might turn to a fellow passenger, even as the announcement is continuing, and ask:
Can you understand what he is saying?
The announcement is in progress.
In English we say that we listen to something; in some other languages you can just "listen something", using a verb similar to "listen" transitively without a preposition. Why is this any great surprise, though? Some languages have articles, some don't. Some generally put attributive adjectives before the nouns, others after, others vary. Some have fairly free word order, some fairly fixed word order. Some have grammatical gender and complex case systems. Some have tense, some don't. Languages can't all be expected to represent the same thoughts in exactly parallel ways.
Best Answer
Consider the following conditional declarations:
The question Why would I do it? asks "What possible reason or motive would I have for doing it?
In your example:
"What possible circumstances would lead me to write I like it when you kangaroo?"