[FFmpeg-user] Why does the 'detelecine' filter exist?

[Mark Filipak]

On 28/05/2025 19.33, Andrew Randrianasulu wrote:
> чт, 29 мая 2025 г., 01:38 Mark Filipak <markfilipak.imdb at gmail.com>:
...
> Generally I prefer to have two versions of similar things, so when one
> broke at least I have plan B or some easy way to compare them.

So, I conclude you dislike deprecation. But I assume you want FFmpeg to continue developing. So, how 
can those opposing desires be reconciled?