Most things that are flagging at all are flagging one or two little errors, some of which I feel are silly for N3V to ask for, but I can understand their reasoning as part of an attempt at making a wider standard for the content people have access to. Things like Dual use of .Tga Files as a Thumbnail .... Is it really so bad to not use .tga Files as Thumbnails?
Yes. There are three issues with this. One is an outright fail -- a case where the direct references to the .tga stop working. The other two are performance problems. One is a cause of stuttering (building textures on the fly while Trainz is running which could have been done by Content Manager on commit), and the other is inflated graphics card RAM usage (those on the fly textures are either four or eight times the size they could have been had we built them in CM and had the time to do it properly, oh and you've probably got the other version of the texture loaded already anyway).
or a Decimal Point in the Maximum Load Capacity for an Engine or Wagon. ... or to keep things like decimal points out of maximum Fuel Tank Capacities?
This is normally a case of overly-high precision on a low-accuracy number. The side of the wagon says "150,000lbs", so we'll plumb that into google and find that it's 68038.9kg in these newfangled metric units. We then cut'n'paste that into the config file, and hey presto, we are done.
Thing is, there is no reason we need the number that precisely -- 68039 would be absolutely fine. In fact, you'd probably not notice any difference in game if it was provided as 68000. To all the people that are thinking "but that's
wrong!" -- how accurately do you think that number was calculated in the first place? The original is provided to two significant figures. The actual weight of each individual wagon will not be 150,000lbs to the pound exactly -- it'll be hundreds, if not a thousand or more off. And each one will be slightly different too. And that's before you consider consumables like oil and grease, wear (new wheels are appreciably heavier than worn ones, for example), repairs, etc, which would modify each wagon further from this number.
Nevertheless, please send us a bug report about this if you are either getting a large number of them on the same tag across a range of content, or getting ones where the accuracy really matters (like you're being asked to choose between 2 and 3 where you really want 2.5, for example).
Include the tag name(s), the error reported, a usage example (e.g. the KUID of a DLS asset that hits this case, or a copy of an asset you've built which hits it), and for the 'widespread error' case, an indication of how widespread it is.