Hi. I'm a dev myself and I saw about this a couple of times but I never knew why that was a thing or something recommended, so I thought this was my chance to ask. Why is it recommended?
Fun fact: it was a Patreon goal to add animations once the game was done but when he finished the game he said "Nah, for the next game". I think he announced his next game before finishing this one (or at least it was definitely before finishig Tracy's story) so sadly I don't think he has that mentality.
It's recommended because someone might want to use a longer name and if they use said longer name it can cause problems. Giving guidance about the limitations is useful. It's UI development goodness, but that may not necessarily be best GameDev practice.
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Now,
I've played through this game Ch12 and yes it's good and I do like the music. However, it is not the best.
The models are, not to my taste, is it me or do they seem dehydrated? The posing is above average in the grand scheme but ultimately average when compared to its competition. The story itself seems linear, I'm aware that it's a VN, but even VNs don't have to feel that way. No matter how I play or what choices I choose I seem to end up with the same results even if I go right back through and very little seems to change it. There are places where I expected a choice but didn't get one and as we progress there was plot hole after plothole in the story.
All in all, this gets a B- from me, it meets the standard (albeit not to my preferences) graphically, the animations (mostly), UI, and the music was excellent if lacking variation, unfortunately the story, continuity, linearity and a couple of times my suspension of disbelief was challenged (and hey, if you tell me the earth is flat, I'll give you the benefit of the doubt for an hour). It's not bad and I think others should play it. It's a great attempt and hopefully the Dev has learned a lot from making it.