- LAN setup: "Found games" is "Geamannan air an lorg" in the gd locale, which doesn't have enough space. I just shortened the string to this from something even longer, but I expect it still won't fit in the label. Make it as wide as the server IP address field and it will both fit and look less cluttered.
- LAN hosting: The "Clear Blocked Players" label needs to fit "Glan na cluicheadairean bacte"
- Serverlist fonts have no contrast to the menu background, very hard to read.
- Custom Game: "Shared Team Units" and "Shared Team Resources" should right-align to their checkboxes. "Scenario" and "Advanced options" should have right-aligned checkboxes in the same vertical axis, with their labels right-aligned to the left of them
- "Exit current game?" is still one string, I have pointed out before that it needs to be split into a menu entry and a dialog question. One does not put question marks on menu buttons. This is a legacy from Vanilla Glest and it's time it got fixed.
Also, options menus take ages to load...
I agree with this.

... also some differences between game configuration screens (own hosted vs headless) are nasty. The worst is related with "start game button". On headless is located on the left, in other case on the right

. In my opinion many times, many people clicked "reload las..." instead of "start".
... and this reminded me about broken "reload last..." function on headless.
...- Keyboard keybinding names are untranslatable
- In the "About" screen, some strings aren't translated (web, bug reports, copyright)...
For these in general we need very trusted/verified translations what isn't possible currently, because number of active translators (for each language) is not enough large. For example by bad translation "key shortcut" may do something different than description.
Summing up: it is possible to do but not so easy.
...Internet lobby: Yellow greeting announcement from Masterserver is in English...
This text is taken each time from masterserver. Translation isn't a problem here but when someone will change this text on masterserver then translation will disappear. I had personal patch for this maybe 2 years ago but since this time message was changed few times.
Summing up: it is possible to do but not so easy.