There are specific regulations for “other” forms of voting and pre-meeting electronic voting (Regulations sections 14 and 15) , with the common factor that they must be agreed on and established before the meeting at which they are to be employed.
But to answer the original question, in NSW you could theoretically send a blank proxy form and ask the strata manager to fill in the name but this would be such an abrogation of your responsibilities I wonder why you would do it to begin with.
Better to abstain than vote blindly, and with the new regulations about quorums, the presence of your vote will make no difference as to whether or not.the meeting can proceed.
(1) An owners corporation or strata committee may, by resolution, adopt any of the following means of voting on a matter to be determined by the corporation or committee:
(a) voting by means of teleconference, video-conferencing, email or other electronic means while participating in a meeting from a remote location,
(b) voting by means of email or other electronic means before the meeting at which the matter (not being an election) is to be determined by the corporation or committee (pre-meeting electronic voting).
(2) Without limiting subclause (1) (b), the other electronic means of voting may include requiring voters to access a voting website and to vote in accordance with directions contained on that website.
(3) If a matter may be determined partly by pre-meeting electronic voting, the notice of the meeting must include a statement that the relevant motion may be amended by a further motion given at the meeting after the pre-meeting electronic voting takes place and that consequently the pre-meeting vote may have no effect.
(4) A motion that is to be determined wholly by pre-meeting electronic voting may not be amended at the meeting for which the pre-meeting electronic voting is conducted.
(5) A motion that is to be determined partly by pre-meeting electronic voting must not be amended at the meeting for which the pre-meeting electronic voting is conducted if the effect of the amendment is to change the subject matter of the original motion.
(6) If a motion that is to be determined wholly or partly by pre-meeting electronic voting is amended at the meeting for which the pre-meeting electronic voting is conducted, the minutes of the meeting distributed to owners must be accompanied by notice of the change and a statement setting out the power to make a qualified request for a further meeting under section 19 of the Act.