don't write them away!
as far as keeping their power in check...say they were inspired by Axon, they choose not to use their powers...something like that... *shrugs* you don't have to give them the worst luck in the universe just to make sure they don't get too powerful 
Well, I think I can keep them for a while, but eventually they will have to go.
i think they surviving that made them a super power. nothing less would of survived
Thanks, they will sure appreciate that.
Perhaps a catstrophic string of the viruses damages all newly created AIs so that they are not sentient. That way, the Wexxian population wouldn't grow, and the remaining would be split between finding a way to deactivate the aging virus or living out their lives as the Wexxins decline.
firstly; a virus strong enough to damage Wexxian coding on a large enough scale to cause any real damage, would have to manufactured by a… Wexxian! No other kinds of beings would have the knowledge and skill to be able to by-pass the firewall programs and damage the extremely complicated program coding.
Secondly, if there were anything wrong with their reproductive capabilities… then they would fix it! They are very well aware about their programs and know what it is supposed to be like.
Thirdly; the ageing virus is engineered by the Wexxians… it was one of their first adaptations towards organics. It was incorporated into their programming along with emotions and simulated hormone systems. The Wexxians embrace death as a natural part of life, they do not have any expectations of an afterlife, yet they have never feared death. On the contrary, they say that the knowledge that death awaits them; makes them enjoy their life more… appreciate every moment. The virus is not an essential problem to the Wexxians, to them it is a force that ensures continuity.
Your idea is good, but the Wexxians have to great understanding of their own nature to be destroyed that way. It did however work in the past; where Nemesis’s last crime was to spread a virus to undermine the Wexxian Base-Code in the end of the Necromicon War… sounds harmless? It killed 99% of the Wexxian population and forced the rest into exile for 200 years.
I have an idea to weaken the Wexxians by dividing their people into different factions, following different ideals and interpretations of the Base-Code.
Have them make a Restruant at the end of the Universe, then convert the whole population there so in millions of years time, other races can have fancy meals there.
Duly noted!