This causes unnatural gameplay mechanics in vanilla and vanilla+ servers. I have noticed more and more people adopting this tactic, and it clearly provides added value to the user. Currently doing it has no cost, no stamina cost, no accuracy cost. A lot of people are spamming q-e, then when they see someone they go immediately prone and shoot at the same time, doing this with 100% accuracy. The animations are also quite fast contributing to the efficiency of this move.

Adding a stamina cost/slowing the animations with these actions would at least make it more natural and more of a decision than "always do it in cqb". This is starting to become very common on vanilla+ pvp servers, especially with more advanced playerbase.