Slow or too few updates:
This can be annoying, especially at the start of the game when they have only completed up to the first gym or so and you cannot go any further into the game and have to wait a good few months before continuing. And generally by that time you can lose interest in the game which can result in the next point.
They never get finished:
This can be extremely disappointing for some people. For me a good example is Pokémon Ash Grey. It may be being worked on but as far as I know it has been stopped. I was very much looking forward to playing the full game but doesn't seem like it will happen unfortunately.
Misspellings in games:
This is one of the most frustrating things that happen. If it is something small such as a space wasn't added between two words that is understandable, everyone makes mistakes. But when people just write in fully lower case and do not use punctuation at all (that may be an over exaggeration) to me it shows laziness and no dedication towards the work they have done.
I only like 'Fakémon' for legendary Pokémon as long as they have a good story towards them. Or for Starters (sometimes). But when you enter the first route and there are at least 4 different Pokémon that pop up that are all Fakémon it can annoy me. Which is why I dislike playing games that have a lot of Fakémon in them.
It can be very disappointing when there is a game that has a lot of potential with an amazing story line and mapping and graphics etc. but is ruined by one of the points I previously mentioned.
I really dislike it when fangames that have a ton of potential, look fantastic, play fantastic, and look like they will be a hit, are canceled.
It's like, what was the point of using all that time spent making the game look and play good, but cancel it before even a beta release?
I feel you, but real life should always come first, and people are just often too busy, or their teams falls apart for some reason, and to say the least, the developer's talented team was probably one of the reasons the game looked so nice in the first place.
I personally don't enjoy when a developer breaks the fourth wall of the game and ruins the image of a different world. I like playing Pokemon games because they're different, and when someone references that it's a hack, or you battle the developer, it generally ruins it for me.
The development communities generally appreciate (and some give several prizes) big projects that have too many things customized and too many things to do, specially the visual part that have a instant effect on attracting people. These projects generally took ages and need a big team to do, and when some members give up for some reason (even stupid ones) the team fall apart. These people prefer to focus their time more disseminating their games than making it. In this forum we can see some project that have more than a thousand of replies and no even a demo.
I prefer the development methodology of making the game and latter add features and custom things on it, so if you give up you have an average game rather than a demo full of custom things.
Pokemon is a really hard game to make. One thing that annoys me and is not on the list is the fact that eveyone wants to make a long pokemon game. I'd like to see some shorter but better ones. Mispellings, bugs, crashes and other annoying things are common in longer games because they need a lot of time and a big team. Why not making a shorter game? that's only a suggestion of course.
that the topics are filled with utter spam, many people decide to use the same, boring storyline, that nothing has really been planned, that there are no new features or systems, that updates are made, but don't show much of anything, and that many people put poor-looking Fakemon in there games (Acanthite excluded).
For me, its a. Spelling and Grammar. Please people, I advise typing EVERYTHING into MS Word, Pages, OpenOffice or whatever word processing program you have with spell check, and make sure it WORKS!!!! I've seen some pretty good games out there that have put me off because of spelling.
b. Very few new features. It's great to have a awesome game, you know? New storyline, new region, new cities, great everything... but it's basically the same features as every game has... I mean, what would it take to just have a nice event here or there that looks nice, hm hm? Maybe the Pokémon are all visible form a GUI at the top of the screen? That'd be cool. What about a fully interactive day/night system, with berries only growing in day and the Pokémon Center is closed at night? Cool! You get me?
c. Pokemon Essentials. Linking back to b, I know a lot of people use Pokemon Essentials and rely on it for a lot of things in their games. But there is little variety. Many people use default scripts, default settings, default resources, and just make a game from that. No creativity there whatsoever.