not at all!! it’s not a stupid idea… i really think it can be usefull especially if you want a handier way FROM TIME TO TIME! (with native screamer or filter, or vst’s like waldorf d-pole, blood overdrive, camelcrusher, voxengo boogex etc for example!)
and you don’t want to spend hours creating sends and hydra devices then route, route and route again, to do the same result than just move a simple “dry/wet”" signal on the same track
renoise is the ultimate beast! but suggests don’t kill anybody! (even if you do mistakes in the topic explanation!, just edit it and say, filters, screamer and some vsts 
)
i think bitarts often confuse:
“requests/suggestions” with “dissatisfaction/lack of knowledge”
this is a good example
peace!