Are there any reasons why Ash seems to forget certain Pokémon he's seen before?

Just wondering, since it partially bugs me. Like with Scolipede, he sees it once and the few episodes later he’s surprised to see one. Is it because of the Pokedex Entry?

Pleaselog inorregisterto add a comment.

It means more people get to see the Pokemon identified. Although it seems dumb, they make Ash do this so more viewers can see the PokeDex data for that Pokemon.

For example, if Ash saw a Pokemon 50 episodes ago, and the same one reappeared later, the audience would have changed. The writers make Ash act as if he’d never seen it before so more viewers can experience it. The writers generally care more about what’s going to appeal to the audience then anything.

This is probably because Nintendo wants it this way.I would personally say they do this to ‘refresh’ your memory, as well as to cater to newer viewers who may or may not have seen that episode before. So basically they spam the Pokedex Data so new viewers know about it too.The point of the anime is to generate income, and to generate income it’s best to cater for the audience, especially the new ones. The actual logic of the anime matters little.