You just described Mercury
Mercury has a thin oxygen-sodium-hydrogen atmosphere so sparse it is almost a vacuum. Just as you describe, solar wind strips away gases on the surface, meaning Mercury is shrinking fast.
Instead of an atmosphere, Mercury possesses a thin exosphere made up of atoms blasted off the surface by the solar wind and striking meteoroids.
Unlike the planet you described, Mercury has virtually no atmosphere to scatter the light. Because of this, temperatures range in the extreme, from boiling hot by day to frigid at night. The sky is black, possibly because Mercury is smeared with carbon. (Just a thought: if the planet is "airless" and has "no atmosphere," as you say, how do you justify your scattering light? You cite Titan as an example, but Titan has a rich nitrogen-methane atmosphere which react to produce organic molecules.)
Despite having no atmosphere, Mercury may have underground lava tubes which could serve as a future human settlement
Research indicates that Mercury possesses hollows, holes on its surfaces that indicate potential lava tubes underground. These tunnels, formed by molten lava flowing from a volcano, could be emptied out to form a network of caves. The concept of an underground cave settlement on Mercury is the topic of many headlines.
Building Subterranean Cities on Mercury "Not So Crazy," Scientist Says
NASA has toyed with the idea of taking advantage of frozen tunnels on the moon as a prime location to build a moonbase. Discovery's Ray Villard explains: the lava tubes would allow for ant farm-like colonies of humans living underground... Recent satellite data reveals that Mercury too might have some of those lava tubes
How do we colonize Mercury?
Colonies built inside stable lava tubes would be naturally shielded to cosmic and solar radiation, extremes in temperature, and could be pressurized to create breathable atmospheres [italics mine]. In addition, at this depth, Mercury experiences far less in the way of temperature variations and would be warm enough to be habitable.
Although these articles go more in depth, the general consensus? Mercury has no atmosphere, but has water sources and potentially lava tubes, which could be used to create a breathable atmosphere underground. The only part of your planet I'd cast doubt on is its organic-compound, light-scattering "airless" atmosphere.