Yeah, the difficulty of the maps in rounds servers on TMNF are what eventually put me off of playing for ladderpoints and rank.
I've been playing rounds servers - both casual and competitive - since I got Nations in 2006; it's transitioned for me from the [z]cars rounds server (arguably one of the most popular rounds servers in the Nations era) through to the mixed tech / dirt servers in TMNF and the tracks have changed a lot.
Originally the tracks were all player-built, designed not specifically for competition but designed to be fun ... yet were still challenging to get a fast time on and I reckon were far more difficult due to possessing greater diversity - [z]cars had tracks ranging from speedtech (reRun, by far my favourite map of all time) to fullspeed (there was one particular FS map in the server where I had the WR on it for three weeks... until they discovered a stupid cut v.v) and of course tracks which encorporated many different 'genres' of track in one (sections of tech, sections of fullspeed, sections of very tight, precise corners). Put simply, there was always something for everyone. They even had a few 'labyrinth' tracks, which were hillarious to drive around.
Last time I played a competitive server in TMNF, the tracks were all the same - tight, twisty tech maps built by league mappers for professional league tournaments, designed to have only one racing line and to punish mistakes with retirements. The alternatives were dirt-tech servers, which were really the same except they could technically be completed FS. Whilst I'm a huge fan of tech maps (and specifically speed-tech - I design speedtech tracks and a few of them have ended up online on some servers) .... put simply, those 'new' types of tech track completely bore me; there's no fun in driving them because they require too much precision and they put off the more casual driver due to basically being all the same.
Back in 2007, you could get speed-tech maps that had loops ... when's the last time you raced a tech track in a 70-90K server that had a loop in it? Probably never.
The thing is, I prefer rounds over time attack because it encourages consistency, and encourages you to find ways around mistakes and, to be fair, racing 200+ people around the track at once rather than everyone being scattered on different runs is far more exciting to me. The problem is, the only servers I can find that have fun tracks are now all time attack, which is a shame.
I hope TM2 can reverse this and bring back the whole rounds-server community; just because some people don't make 'professional' maps doesn't mean those maps can be challenging in their own right. I've sometimes played more difficult tracks in casual TA servers than I have in the 100K servers.
And sorry for the rant ^^; I was just giving my opinion on the server scene.