if I make a joke

That is legit a good reason!

other meaning they might have

Like language, the meanings change over time, but unlike language, they change rapidly. Tomorrow they can have another meaning to a group. I am always reminded of a story in my country (maybe everywhere as well) this granny used LOL on a sad message with the 🤣. She thought it meant lots of love and the tears meant crying. Needless to say, like memes, they change meaning so quickly.

wouldn't it be horrible if I just answered to you

Let us hope that we are not moving in that direction.

Are we going to that direction?

I think more "in-groups" and "out-groups" are going to form. Some people will gravitate towards that minimalist language and others will move back to the archaic versions. I can see it happen in Afrikaans amongst younger people. Some people are overly attached to the archaic version and some are embracing the minimalist one.

So perhaps at some point Finnish will be just one of the many English dialects in the world.

Maybe. We already mentioned it, various languages are suffering a similar fate. We might go so far that we will re-invent proto-indo-european language!