HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

...I kept reading in every tenth post, "make the outpost level 2, just do it!", I did it, and then, "oh, what a nightmare, why did you do that!"...

Regarding level 2. In one case, you specifically restart the game to get it. And in another case, it's completely unnecessary; even if it appears randomly, I don't buy it (for example, with Dwarves). It will only result in a small saving of resources and 1 day. In Tournaments, this can be critical; in other cases, it's just grinding.
In Heroes, randomness is very important – the appearance of morale, luck, damage range, random resources, artifacts, guards, monsters in refugee camps, spells, skills, etc. The probability of one random event is higher, another is lower, but at the most inappropriate moment, according to Murphy's Law, that 1% bad random event may occur. It's not worth touching this function and catering to those who want all their starting heroes to be level 99 with legions of Chaos Dragons, while their opponents only have level 1 heroes with a single Imp.